CN212642601U - A hydrodynamic hole reaming device - Google Patents
A hydrodynamic hole reaming device Download PDFInfo
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- CN212642601U CN212642601U CN202021537309.1U CN202021537309U CN212642601U CN 212642601 U CN212642601 U CN 212642601U CN 202021537309 U CN202021537309 U CN 202021537309U CN 212642601 U CN212642601 U CN 212642601U
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Abstract
本实用新型属于煤矿钻孔技术领域，具体地，涉及一种水动力扩孔装置，包括水力马达、扩孔座和钻头，所述水力马达的输出轴上设有出水口，所述扩孔座的一端连接在输出轴上，另一端与钻头相连接，所述水力马达远离扩孔座的一端与外部的高压水源连通，所述扩孔座上设有柔性扩孔链条或缆索，所述柔性扩孔链条或缆索均采用高强耐磨金属材质，且柔性扩孔链条或缆索内均穿设有高压软管，所述扩孔座内设有与输出轴上的出水口相连通的高压水道，所述高压软管与高压水道相连通，所述高压软管远离扩孔座的一端敞口设置。通过本装置对煤矿普通钻孔进行扩孔，可提高扩孔装置的可靠性，降低扩孔成本，保证煤矿钻孔的扩孔效率。
The utility model belongs to the technical field of coal mine drilling, in particular to a hydrodynamic hole reaming device, which comprises a hydraulic motor, a reaming seat and a drill bit. An output shaft of the hydraulic motor is provided with a water outlet, and the reaming seat is provided with a water outlet. One end of the hydraulic motor is connected to the output shaft, and the other end is connected to the drill bit. The end of the hydraulic motor away from the reaming seat is connected to an external high-pressure water source. The reaming seat is provided with a flexible reaming chain or cable. The reaming chain or cable is made of high-strength and wear-resistant metal material, and the flexible reaming chain or cable is equipped with a high-pressure hose. The high-pressure hose is communicated with the high-pressure water channel, and one end of the high-pressure hose away from the reaming seat is openly arranged. Through the device for reaming common boreholes in coal mines, the reliability of the reaming device can be improved, the reaming cost can be reduced, and the reaming efficiency of the boreholes in coal mines can be ensured.
Description
Technical Field
The utility model belongs to the technical field of colliery drilling, specifically, relate to a hydrodynamic force reaming device.
Background
Before coal mine collection, a hole needs to be drilled for gas extraction, a hole needs to be drilled from a rock layer to a coal seam during drilling, and in order to save drilling cost and increase gas extraction efficiency, the hole needs to be reamed under the condition that the hole diameter of a rock layer drilling section is not changed, so that the surface area of an inner hole of the coal seam is enlarged, and the gas overflow efficiency is improved.
Chinese patent document CN201810392039.0 discloses a soil layer variable diameter mechanical reaming bit and a drilling method using the same, wherein torque is transmitted through the bit and a transmission rod, and a reaming telescopic arm is folded when the bit is not stressed, so that small diameter drilling can be conveniently performed; when the reamer enters the bottom of the hole, pressure is applied through the transmission rod, the reaming telescopic arm is outwards opened, and the second connecting rod inlaid with the alloy particles 5 is used as the reaming arm to cut the wall of the hole after rotating along with the transmission rod to form reaming. The diameter of the reaming hole can be adjusted by controlling the telescopic length of the reducing control rod. After the reaming section is constructed, the whole body retreats backwards, the two opened connecting rods automatically fold and straighten under the friction action of the hole wall, and the whole diameter is reduced, so that the hole can be smoothly retreated out of the hole from the non-reaming section. There is the reaming bit that drives the reaming arm through hydraulic support and stretches out and draws back on the market, but among the prior art, the reaming effect is not ideal in setting up of reaming arm, the drilling rod leans on motor drive, the rotational speed reaches 500r/min, the stress impact that the connecting portion of reaming arm and drilling rod received at the reaming in-process is great, easy fatigue damage, and when reaming arm shrink easily and between the drilling rod centre gripping bold coal grain, lead to the shrink not in place, the influence moves back to bore, increase the reaming cost, and can't guarantee the reaming efficiency of construction of drilling.
Therefore, a hydrodynamic reaming device is needed to improve the reliability of the reaming device, reduce the reaming cost and ensure the reaming efficiency of coal mine drilling.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a hydrodynamic force reaming device, including hydraulic motor, reaming seat and drill bit, be equipped with the delivery port on hydraulic motor's the output shaft, the one end of reaming seat is connected on the output shaft, and the other end is connected with the drill bit, hydraulic motor keeps away from the one end and the outside high-pressure water source intercommunication of reaming seat, be equipped with flexible reaming chain or cable on the reaming seat, flexible reaming chain or cable all adopt high-strength wear-resisting metal material, high-strength wear-resisting metal material can choose for use 27SiMn material, and intensity is high, and the wearability is good. And all wear to be equipped with high-pressure hose in flexible reaming chain or the cable, the cable is made by the steel wire of the wear-resisting alloy steel material of stranded outside high-pressure hose, be equipped with the high pressure water channel that is linked together with the delivery port on the output shaft in the reaming seat, high-pressure hose is linked together with high pressure water channel, the open setting in one end that the reaming seat was kept away from to high-pressure hose, reaming seat surface is equipped with the spiral baffle box, and the broken coal grain is in time carried out drilling when conveniently will ream, guarantees reaming efficiency.
Preferably, the flexible reaming chain adopts a mining high-strength round-link chain, the freedom degree of each chain link of the mining high-strength round-link chain is high, the problem of coal accumulation between the mining high-strength round-link chain and the reaming base can be avoided, and a high-pressure hose is conveniently penetrated.
Preferably, the high-pressure hose is an armored metal hose, so that the service life of the high-pressure hose is guaranteed.
Preferably, the reaming seat is provided with assorted concave-convex connecting part corresponding to the connecting end of the drill bit, and the reaming seat is fixedly connected with the concave-convex connecting part of the drill bit through a bolt, so that the reliability of connection of the drill bit is ensured.
Preferably, still be equipped with the diamond compact piece on flexible reaming chain or the cable, be favorable to prolonging the life of flexible reaming chain or cable to improve reaming efficiency. Set up the one end that flexible reaming chain or cable kept away from the reaming seat with the diamond compact piece, be favorable to reducing device manufacturing cost to guarantee reaming efficiency.
Preferably, flexible reaming chain or cable is provided with three circles along reaming seat axial interval, and every circle is equipped with two flexible reaming chains or cables, is favorable to guaranteeing reaming efficiency to increase the stability and the reliability of device.
Preferably, the reaming radii of the three turns of flexible reaming chain or cable are 100mm, 200mm and 250mm respectively, the smaller the reaming radius the closer the flexible reaming chain or cable is to the drill bit. The purpose of drilling forward and gradually expanding the drilled hole can be achieved, and the reaming efficiency is improved.
The utility model discloses still including other subassemblies that can make this hydrodynamic reaming device normal use, be the conventional technical means in this field, in addition, the utility model discloses in not add the device or the subassembly of injecing and all adopt the conventional technical means in this field. The hydraulic motor according to the present invention may be a micro hydraulic motor disclosed in chinese patent document CN 201246259.
The utility model discloses in, hydrodynamic force reaming device passes through the hydraulic motor drive reaming seat and the drill bit is rotatory, the drill bit plays the purpose that deepens drilling, flexible reaming chain or the cable of connecting in its periphery is whipped when the reaming seat is rotatory, realize flexible hitting to the coal seam in the drilling, thereby flexible reaming's purpose has been reached, rigidity for guaranteeing flexible reaming chain or cable, all wear to establish high-pressure hose in flexible reaming chain or cable, and let in the high pressure water to high-pressure hose through the high-pressure water channel in the reaming seat, thereby make high-pressure hose inflation sclerosis make flexible reaming chain or cable extend fast and rigidity reinforcing, thereby improve reaming efficiency, the uncovered setting of one end of reaming seat is kept away from to high-pressure hose, the high pressure water is from the open end blowout of high-pressure hose, the effect of hydraulic cutting is played to the coal seam, thereby further improvement reaming efficiency. In order to further ensure the hydraulic cutting effect, the open end of the high-pressure hose can be connected with a high-pressure spray head.
The beneficial effects of the utility model are that, this device passes through hydraulic motor drive reaming seat and drill bit to set up flexible reaming chain or cable on the reaming seat and realize flexible reaming to coal seam drilling, the device easily harms when having solved among the prior art through reaming arm reaming, and be difficult for moving back the technical problem who bores, thereby the reliability of device has been guaranteed, and through the rigidity that sets up high-pressure hose improvement flexible reaming chain or cable, supplementary water conservancy cutting simultaneously, can improve the reaming efficiency of colliery drilling by a wide margin, and the reaming cost is reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a terminal three-dimensional structure of the flexible reaming chain of the present invention.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the utility model provides a hydrodynamic force reaming device, including hydraulic motor 1, reaming seat 2 and drill bit 3, be equipped with the delivery port on the output shaft of hydraulic motor 1, one end of reaming seat 2 is connected on the output shaft, and the other end is connected with drill bit 3, one end that hydraulic motor 1 keeps away from reaming seat 2 communicates with outside high-pressure water source, be equipped with flexible reaming chain 4 on reaming seat 2, flexible reaming chain 4 adopts high strength wear-resistant metal material, high strength wear-resistant metal material chooses for use 27SiMn material; and all wear to be equipped with high-pressure hose 5 in the flexible reaming chain 4, be equipped with the high pressure water channel 6 that is linked together with the delivery port on the output shaft in the reaming seat 2, high-pressure hose 5 is linked together with high pressure water channel 6, the uncovered setting of one end that reaming seat 2 was kept away from to high-pressure hose 5, reaming seat 2 surface is equipped with spiral baffle box 7, conveniently in time carries out the drilling with broken coal grain when reaming, guarantees reaming efficiency. The connecting end of the reaming base 2 and the drill bit 3 is correspondingly provided with a matched concave-convex connecting part, and the reaming base 2 is fixedly connected with the concave-convex connecting part of the drill bit 3 through a bolt, so that the connection reliability of the drill bit 3 is ensured. One end of the flexible reaming chain 4 far away from the reaming base 2 is provided with a diamond composite sheet 8, so that the service life of the flexible reaming chain 4 is prolonged, the manufacturing cost of the device is reduced, and the reaming efficiency is improved. Flexible reaming chain 4 is provided with three circles along the axial interval of reaming seat 2, and every circle is equipped with two flexible reaming chains 4, is favorable to guaranteeing reaming efficiency to increase the stability and the reliability of device. The reaming radii of the three rings of flexible reaming chains 4 are respectively 100mm, 200mm and 250mm, and the closer the flexible reaming chains 4 are to the drill bit, the smaller the reaming radii are. The purpose of drilling forward and gradually expanding the drilled hole can be achieved, and the reaming efficiency is improved.
In the utility model, the hydrodynamic reaming device drives the reaming base 2 and the drill bit 3 to rotate through the hydraulic motor 1, the drill bit 3 plays the role of deepening the drilling, the flexible reaming chain 4 connected on the periphery of the reaming base 2 is swung when the reaming base rotates, flexible beating is realized to the coal bed in the drill hole, thereby achieving the purpose of flexible reaming and ensuring the rigidity of the flexible reaming chain 4, a high-pressure hose 5 is arranged in the flexible reaming chain 4 in a penetrating way, and high-pressure water is introduced into the high-pressure hose 5 through a high-pressure water channel 6 in the reaming base 2, so that the high-pressure hose 5 is expanded and hardened, the flexible reaming chain 4 is rapidly stretched and the rigidity is enhanced, thereby improve reaming efficiency, the open setting of one end that high pressure hose 5 kept away from reaming seat 2, the water under high pressure spouts from the open end of high pressure hose 5, plays the effect of water conservancy cutting to the coal seam to further improvement reaming efficiency. To further ensure the hydraulic cutting effect. Thereby further improving the reaming efficiency.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (8)
1. A hydrodynamic reaming device characterized by: including hydraulic motor, reaming seat and drill bit, be equipped with the delivery port on hydraulic motor's the output shaft, the one end of reaming seat is connected on the output shaft, and the other end is connected with the drill bit, hydraulic motor keeps away from the one end of reaming seat and outside high-pressure water source intercommunication, be equipped with flexible reaming chain or cable on the reaming seat, flexible reaming chain or cable all adopt the wear-resisting metal material of excelling in, and all wear to be equipped with high-pressure hose in flexible reaming chain or the cable, be equipped with the high pressure water channel that is linked together with the delivery port on the output shaft in the reaming seat, high pressure hose is linked together with high pressure water channel, the open setting in one end of reaming seat is kept away from to.
2. The hydrodynamic reaming device of claim 1, wherein: the flexible reaming chain is a mining high-strength round-link chain.
3. The hydrodynamic reaming device of claim 1, wherein: the high-pressure hose is an armored metal hose.
4. The hydrodynamic reaming device of claim 1, wherein: the high-strength wear-resistant metal material is a 27SiMn material.
5. The hydrodynamic reaming device of claim 1, wherein: the reaming seat is provided with assorted concave-convex connecting part corresponding to the connecting end of the drill bit, and the reaming seat is fixedly connected with the concave-convex connecting part of the drill bit through a bolt.
6. The hydrodynamic reaming device of claim 1, wherein: and a diamond compact is also arranged on the flexible reaming chain or the cable.
7. The hydrodynamic reaming device of claim 1, wherein: the flexible reaming chains or cables are axially arranged in three circles at intervals along the reaming base, and each circle is provided with two flexible reaming chains or cables.
8. The hydrodynamic reaming device of claim 7, wherein: the reaming radii of the three turns of flexible reaming chains or cables are 100mm, 200mm and 250mm, respectively, the closer the flexible reaming chains or cables are to the drill bit, the smaller the reaming radii are.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021537309.1U CN212642601U (en) | 2020-07-29 | 2020-07-29 | A hydrodynamic hole reaming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021537309.1U CN212642601U (en) | 2020-07-29 | 2020-07-29 | A hydrodynamic hole reaming device |
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| CN212642601U true CN212642601U (en) | 2021-03-02 |
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| CN202021537309.1U Active CN212642601U (en) | 2020-07-29 | 2020-07-29 | A hydrodynamic hole reaming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720058A (en) * | 2020-07-29 | 2020-09-29 | 河南理工大学 | A hydrodynamic hole reaming device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720058A (en) * | 2020-07-29 | 2020-09-29 | 河南理工大学 | A hydrodynamic hole reaming device and method |
| CN111720058B (en) * | 2020-07-29 | 2024-11-05 | 河南理工大学 | A hydrodynamic hole enlarging device and method |
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