CN212406592U - Detachable roller rock reamer - Google Patents
Detachable roller rock reamer Download PDFInfo
- Publication number
- CN212406592U CN212406592U CN202021289143.6U CN202021289143U CN212406592U CN 212406592 U CN212406592 U CN 212406592U CN 202021289143 U CN202021289143 U CN 202021289143U CN 212406592 U CN212406592 U CN 212406592U
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- cone
- seat
- shaft
- supporting plate
- screw threads
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Abstract
The utility model discloses a detachable roller rock reamer, which comprises a mandrel connected with a drill rod, a centering device, a roller body, a roller seat supporting plate and a rib plate; the cone body comprises a cone seat, a cone shaft and a cone body, the cone body is connected with the cone shaft, the cone shaft is embedded in the cone seat, and the cone seat is fixed on a cone seat supporting plate; the cone bodies are arranged into a plurality of cone bearings, cone-shaped female screw threads are arranged in the cone bearings and connected with cone-shaped male screw threads of the cone shaft, and cone lock nuts used for locking the cone bodies are arranged at the end parts of the cone-shaped female screw threads; the core shaft is provided with a plurality of slurry nozzles which are uniformly and equidistantly distributed, and the slurry nozzles are communicated with the central hole of the core shaft. The utility model discloses a gear wheel and body are for dismantling connection structure, and gear wheel and bearing axle can be changed alone, have increased the life of gear wheel, and the gear wheel adopts the big bearing of metal seal simultaneously, and the impact resistance is strong.
Description
Technical Field
The utility model belongs to the technical field of the rock reamer technique and specifically relates to a detachable roller rock reamer is related to.
Background
The existing cone reamer is of a welding type, when a cone is replaced, an old cone needs to be cut off by gas cutting, and then a new cone needs to be welded, so that time and labor are wasted, the field condition is poor, and the error of the welded cone is large. The life of the cone is short, generally only 80-100 hours. In view of the above, there is a need for a removable roller cone rock reamer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detachable roller cone rock reamer, roller cone and body are for dismantling the connection, and roller cone and bearing axle can be changed alone, have increased the life of roller cone, and the roller cone adopts the big bearing of metal seal simultaneously, and the impact resistance is strong.
In order to achieve the purpose, the utility model provides a detachable roller rock reamer, which comprises a mandrel, a centering device, a roller body, a roller seat supporting plate and a rib plate, wherein the mandrel is connected with a drill rod;
the cone body comprises a cone seat, a cone shaft and a cone body, the cone body is connected with the cone shaft, the cone shaft is embedded in the cone seat, and the cone seat is fixed on the cone seat supporting plate; the cone body is provided with a plurality of cone bearings, cone female screw threads are arranged in the cone bearings and connected with cone male screw threads of the cone axle, and cone locking nuts used for locking the cone body are arranged at the end parts of the cone female screw threads;
the core shaft is provided with a plurality of slurry nozzles which are uniformly distributed at equal intervals, and the slurry nozzles are communicated with the central hole of the core shaft.
Preferably, the bearing pin is embedded in the bearing pin seat through at least four fixing bolts.
Preferably, the centering device is a centering block or a centering ring and is fixed at the front end of the mandrel.
Preferably, a plurality of hard alloy teeth are embedded on the surface of the cone body.
Preferably, the cone seat and the cone seat supporting plate, and the cone seat supporting plate and the mandrel are all connected by welding.
Preferably, the material of bearing pin is metal, and its cross-section sets up to trapezium structure, the bearing pin body sets up to semi-circular structure.
Therefore, the utility model adopts the above structure detachable roller rock enlarger possesses following beneficial effect:
(1) the cone and the body are firmly and detachably connected, so that the roller cone is convenient to disassemble and install on site and does not need to be welded;
(2) the gear shaft and the gear body are connected by screw threads, so that the gear shaft is firm and reliable and cannot fall off, and the gear body is provided with an anti-falling self-locking bolt;
(3) the gear shaft and the gear body can be independently replaced, so that the use is convenient, and the cost is reduced;
(4) the cone adopts a large metal sealing bearing, has strong impact resistance and long service life, the service life of the cone is 3-5 times of that of the prior common cone, and the service life of the cone is up to 300-500 hours.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a detachable roller cone rock reamer according to the present invention.
Detailed Description
The technical solution of the present invention is further explained by the accompanying drawings and examples.
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a detachable roller cone rock reamer, as shown in the figure, the utility model provides a detachable roller cone rock reamer, which comprises a mandrel 1 connected with a drill rod, a centering device 2, a roller cone body 3, a roller cone seat supporting plate 4 and a rib plate 5, wherein the rib plate 5, the roller cone seat supporting plate 4, the roller cone body 3 and the centering device 2 are sequentially fixed on the mandrel 1; the cone body 3 comprises a cone seat 31, a cone shaft 32 and a cone body 33, the cone body 33 is connected with the cone shaft 32, the cone shaft 32 is embedded in the cone seat 31, and the cone seat 31 is fixed on a cone seat supporting plate 4; the cone body 33 is provided with a plurality of cone bearings 34, cone female screw threads 35 are arranged in the cone bearing 34, the cone female screw threads 35 are connected with cone male screw threads of the cone shaft 32, cone locking nuts 36 used for locking the cone body 33 are arranged at the end parts of the cone female screw threads 35, the cone shaft and the cone body are connected through screw threads, the cone shaft and the cone body are guaranteed to be detachable and replaceable, the cone body can have an anti-drop self-locking function through the cone locking nuts, and the cone locking nuts are reverse bolts used for locking the cone body and preventing loose threads from falling off; the core shaft 1 is provided with a plurality of slurry nozzles 6 which are uniformly and equidistantly distributed, and the slurry nozzles 6 are communicated with the central hole of the core shaft 1, so that the slurry is sprayed by the reamer, and the functions of lubrication, cooling and slag discharge are achieved. During reaming, a drill rod connected with the core shaft drives the cone reamer to revolve, and meanwhile, the cone body reversely rotates through the bearing under the action of friction force of rocks, so that the rocks are crushed under the action of the tension force of the drill rod.
The bearing pin 32 is embedded in the bearing pin seat 31 through at least four fixing bolts 7, so that the connection between the bearing pin and the bearing pin seat is prevented from being loosened.
The centering device 2 is a centering block or a centering ring and is fixed at the front end of the mandrel 1, so that the centering effect of the reamer in rotation is achieved, the swing of the reamer is reduced, and the reamer can rotate stably.
The surface of the cone body 33 is embedded with a plurality of hard alloy teeth 37 for breaking rocks.
The cone seat 31 and the cone seat supporting plate 4, the cone seat supporting plate 4 and the mandrel 1 are all connected in a welding mode.
The bearing pin 32 is made of metal, and the section of the bearing pin is of a trapezoidal structure, so that the impact resistance is increased, the service life is prolonged, the service life can reach 300-500 hours, and long-distance rock reaming construction can be completed at one time. The cone body 33 is provided in a semicircular structure.
Therefore, the utility model discloses a detachable roller cone rock reamer of above-mentioned structure, gear wheel and body are for dismantling the connection, and gear wheel and bearing axle can be changed alone, have increased the life of gear wheel, and the gear wheel adopts the big bearing of metal seal simultaneously, and the impact resistance is strong.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. A detachable roller rock reamer is characterized in that:
the centering device comprises a mandrel, a centering device, a gear body, a gear seat supporting plate and a rib plate, wherein the mandrel is connected with a drill rod;
the cone body comprises a cone seat, a cone shaft and a cone body, the cone body is connected with the cone shaft, the cone shaft is embedded in the cone seat, and the cone seat is fixed on the cone seat supporting plate;
the cone body is provided with a plurality of cone bearings, cone female screw threads are arranged in the cone bearings and connected with cone male screw threads of the cone axle, and cone locking nuts used for locking the cone body are arranged at the end parts of the cone female screw threads;
the core shaft is provided with a plurality of slurry nozzles which are uniformly distributed at equal intervals, and the slurry nozzles are communicated with the central hole of the core shaft.
2. The removable roller cone rock reamer of claim 1, wherein: the cone pulley shaft is embedded in the cone pulley seat through at least four fixing bolts.
3. The removable roller cone rock reamer of claim 2, wherein: the righting device is a righting block or a righting ring and is fixed at the front end of the mandrel.
4. The removable roller cone rock reamer of claim 3, wherein: the surface of the cone body is embedded with a plurality of hard alloy teeth.
5. The removable roller cone rock reamer of claim 4, wherein: the cone seat and the cone seat supporting plate, and the cone seat supporting plate and the mandrel are all connected in a welding mode.
6. The removable roller cone rock reamer of claim 5, wherein: the material of bearing pin is metal, and its cross-section sets up to trapezium structure, the bearing pin body sets up to semi-circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021289143.6U CN212406592U (en) | 2020-07-03 | 2020-07-03 | Detachable roller rock reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021289143.6U CN212406592U (en) | 2020-07-03 | 2020-07-03 | Detachable roller rock reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212406592U true CN212406592U (en) | 2021-01-26 |
Family
ID=74405539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021289143.6U Active CN212406592U (en) | 2020-07-03 | 2020-07-03 | Detachable roller rock reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212406592U (en) |
-
2020
- 2020-07-03 CN CN202021289143.6U patent/CN212406592U/en active Active
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