CN217106826U

CN217106826U - Autonomously powered reamer

Info

Publication number: CN217106826U
Application number: CN202122633345.9U
Authority: CN
Inventors: 陈晓辉; 王震海; 肖文娟; 彭文建; 张志海; 赵仁强; 朱涛; 蔡虎; 李郑伟; 李勤
Original assignee: China Oil and Gas Pipeline Network Corp; Pipechina Eastern Crude Oil Storage and Transportation Co Ltd
Current assignee: China Oil and Gas Pipeline Network Corp; Pipechina Eastern Crude Oil Storage and Transportation Co Ltd
Priority date: 2021-10-31
Filing date: 2021-10-31
Publication date: 2022-08-02
Anticipated expiration: 2031-10-31

Abstract

The utility model discloses an independently provide enlarger of power belongs to non-excavation technical field. The utility model comprises a hollow universal shaft assembly, a motor assembly, a transmission cutter head assembly, a cutter head and a connecting drill rod which are arranged on the same axis; connect the drilling rod to run through the enlarger is connected with the drilling rod at both ends, motor assembly includes stator and rotor, and the one end of stator is connected with the connection drilling rod, is equipped with hollow cardan shaft assembly in the other end cavity of stator, the one end and the rotor threaded connection of hollow cardan shaft assembly, and the other end of hollow cardan shaft assembly passes through transmission groove tooth structural connection transmission blade disc assembly, transmission blade disc assembly cover is established the cavity of stator is outside, is equipped with bearing assembly between transmission blade disc assembly and the stator, the blade disc passes through transmission groove tooth structural connection and establishes on the transmission blade disc assembly. The utility model discloses can provide the required power of broken rock automatically on the basis of drilling rod is connected at both ends.

Description

Autonomously powered reamer

Technical Field

The utility model relates to a reamer belongs to non-excavation construction technical field.

Background

In the prior non-excavation industry, sufficient tension and torque are needed when a reamer is used for breaking rocks, a drilling machine is mainly used for providing power to perform tension expansion in the process of reaming by using the drilling machine in the common reaming operation, the tension expansion type reaming is performed, the drilling machine provides sufficient tension, but the friction force of a drill rod is increased along with the increase of the construction distance, the greater the power provided by the drilling machine for breaking rocks is, the higher the consumed cost is, and therefore, how to provide sufficient power for breaking rocks under the condition of tension expansion reaming is the largest problem in the non-excavation industry tension expansion operation. In order to solve the problem of insufficient rock breaking and lifting power, a screw motor is used as power to drive a reamer to perform reaming in the prior art, the mode is used for reaming, although enough rock breaking torque can be provided for the reamer, the reaming mode cannot perform pulling and expanding and can only perform top expanding, after the construction distance is increased, the drilling pressure provided by a drilling machine cannot be completely loaded to the reamer, the reamer repeatedly cuts rock strata after rock breaking, the jacking force of the drilling machine can only be increased in order to increase the drilling pressure required by the reaming of the reamer, and the drill rod is easy to bend and break due to the increase of the jacking force. The main reason why the motor cannot be used as power for the broaching is that the middle of the broaching bit cannot pass through the drill rod.

Disclosure of Invention

In order to overcome the weak point of above-mentioned prior art, the utility model provides an independently provide enlarger of power can carry out threaded connection with the drilling rod of connecting the drilling rod through the motor is inside with both ends, and the required power of broken rock is provided automatically on the basis of the drilling rod is connected at both ends.

The utility model discloses a realize through following technical scheme: an underreamer capable of providing power autonomously comprises a hollow universal shaft assembly, a motor assembly, a transmission cutter head assembly, a cutter head and a connecting drill rod, wherein the hollow universal shaft assembly, the motor assembly, the transmission cutter head assembly, the cutter head and the connecting drill rod are arranged on the same axis; connect the drilling rod to run through the middle part of cavity formula cardan shaft assembly, motor assembly, transmission blade disc assembly and blade disc and be connected with the drilling rod at both ends, the motor assembly include the stator and can be planetary pivoted rotor in the stator, the one end of stator and connection drilling rod thread sealing connection are equipped with in the other end cavity of stator cavity formula cardan shaft assembly, the one end of cavity formula cardan shaft assembly with rotor threaded connection, the other end of cavity formula cardan shaft assembly passes through transmission slot tooth structural connection the transmission blade disc assembly, transmission blade disc assembly cover is established the cavity of stator is outside, is equipped with bearing assembly between transmission blade disc assembly and the stator, the blade disc passes through the transmission slot tooth structural connection cover and is established on the transmission blade disc assembly.

The cavity formula cardan shaft assembly includes middle connecting rod, and the water cap is connected to the one end of connecting rod, and the water cap passes through transmission groove tooth structure links to each other with transmission blade disc assembly, the rotor head is connected to the other end of connecting rod, the rotor head with rotor threaded connection, all be equipped with steel ball and semi-ring between connecting rod and water cap, connecting rod and the rotor head and with steel ball and semi-ring seal clamping ring and the rubber sleeve in water cap and rotor head.

The transmission cutter head assembly comprises a transmission shell, one end of the transmission shell is internally connected with the hollow universal shaft assembly, the end of the transmission shell is externally connected with the cutter head, and the other end cavity of the transmission shell is internally connected with the stator through a radial bearing and an axial bearing.

The cutter head is a replaceable reaming size cutter head, the replaceable reaming size cutter head is a hollow cutter body consisting of a front sealing plate, a supporting plate and a rear cover plate, a bit leg base and a detachable bit leg are inserted into the hollow cutter body in a splicing mode, the bit leg base, the detachable bit leg and the supporting plate are fixedly connected together through bit leg fixing screws, and the front sealing plate and the rear cover plate are fixedly connected together and connected to the transmission cutter head assembly through cutter head fixing screws.

The transmission groove tooth structure is a hexagonal groove tooth.

And a radial slurry channel is formed on the side wall of the connecting drill rod, which is close to the rotor port, and is communicated with the interior of the stator.

The utility model has the advantages that: the utility model discloses the enlarger of independently providing power compares and connects the drilling rod in ordinary enlarger both ends and can only be provided power by the rig and draw the expansion, the utility model discloses an enlarger can be on the basis of drilling rod is connected at both ends the automatic required power of broken rock that provides.

Drawings

The invention will be further explained below with reference to the drawings and examples.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the transmission groove teeth of the present invention.

In the figure, a hollow universal shaft assembly 1, a water cap 1-1, a semi-ring 1-2, a pressure ring 1-3, a rubber sleeve 1-4, a connecting rod 1-5, a steel ball 1-6 and a rotor joint 1-7;

the motor comprises a motor assembly 2, a rotor 2-1 and a stator 2-2;

the device comprises a transmission cutter assembly 3, a transmission shell 3-1, a radial bearing 3-2 and an axial bearing 3-3;

the reaming size changeable dental reamer comprises a cutterhead 4, a front sealing plate 4-1, a supporting plate 4-2, a rear cover plate 4-3, a tooth leg base 4-4, tooth leg fixing screws 4-5, a cutterhead fixing screw 4-6 and a detachable tooth leg 4-7;

connecting a drill rod 5 and a slurry channel 5-1;

a transmission groove tooth structure 6, transmission teeth 6-1 and a transmission groove 6-2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.

Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.

The self-powered reamer shown in fig. 1 and 2 comprises a hollow cardan shaft assembly 1, a motor assembly 2, a transmission cutterhead assembly 3, a cutterhead 4 and a connecting drill rod 5 which are arranged on the same axis; connect drilling rod 5 to run through the middle part of cavity formula cardan shaft assembly 1, motor assembly 2, transmission cutter disc assembly 3 and cutter disc 4 and be connected with the drilling rod at both ends, motor assembly 2 includes stator 2-2 and can be in stator 2-2 do planet pivoted rotor 2-1, stator 2-2's one end with be connected 5 threaded seal of drilling rod and be connected, be equipped with in stator 2-2's the other end cavity formula cardan shaft assembly 1, cavity formula cardan shaft assembly 1's one end with rotor 2-1 threaded connection, cavity formula cardan shaft assembly 1's the other end passes through transmission slot tooth structure 6 and connects transmission

cutter disc assembly

3, 3 covers of transmission cutter disc assembly are established outside stator 2-2's cavity, be equipped with bearing assembly between transmission cutter disc assembly 3 and the stator 2-2, the cutter head 4 is sleeved on the transmission cutter head assembly 3 through a transmission groove tooth structure 6.

The hollow universal shaft assembly 1 comprises a connecting rod 1-5 in the middle, one end of the connecting rod 1-5 is connected with a water cap 1-1, the water cap 1-1 is connected with a transmission cutter assembly 3 through a transmission groove tooth structure 6, the other end of the connecting rod 1-5 is connected with a rotor joint 1-7, the rotor joint 1-7 is in threaded connection with the rotor 2-1, steel balls 1-6 and semi-rings 1-2 are arranged between the connecting rod 1-5 and the water cap 1-1 and between the connecting rod 1-5 and the rotor joint 1-7, and a pressure ring 1-3 and a rubber sleeve 1-4 are used for sealing the steel balls 1-6 and the semi-rings 1-2 in the water cap 1-1 and the rotor joint 1-7.

The transmission cutter head assembly 3 comprises a transmission shell 3-1, one end of the transmission shell 3-1 is internally connected with the hollow universal shaft assembly 1, the end of the transmission shell 3-1 is externally connected with the cutter head 4, and the other end cavity of the transmission shell 3-1 is internally connected with the stator 2-2 through a radial bearing 3-2 and an axial bearing 3-3.

The cutter head 4 is a replaceable reaming size cutter head which is a hollow disk body consisting of a front sealing plate 4-1, a supporting plate 4-2 and a rear cover plate 4-3, a bit leg base 4-4 and a detachable bit leg 4-7 are inserted into the hollow disk body, the bit leg base 4-4, the detachable bit leg 4-7 and the supporting plate 4-2 are fixedly connected together through a bit leg fixing screw 4-5, and the front sealing plate 4-1 and the rear cover plate 4-3 are fixedly connected together through a cutter head fixing screw 4-6 and connected to the transmission cutter head assembly 3. The cutterhead with changeable reaming sizes can conveniently replace the detachable bit leg 4-7 according to the required size.

The transmission groove tooth structure 6 is a hexagonal groove tooth, and as shown in fig. 2, the transmission groove tooth structure 6 comprises a transmission tooth 6-1 and a transmission groove 6-2 which are both hexagonal.

And a radial slurry channel 5-1 is formed on the side wall of the connecting drill rod 5 close to the port of the rotor 2-1 and communicated with the inside of the stator 2-2.

The principle of the utility model is that: the rotor 2-1 is driven by mud to rotate in a planetary way inside the stator 2-2, and torque and rotating speed are generated. Rotor joint 1-7 be connected with rotor 2-1, water cap 1-1 be connected with the 3 hexagonal of transmission blade disc assembly, convert rotor 2-1's planetary motion into the dead axle and rotate, connection drilling rod 5 pass the inside drilling rod with both ends of enlarger be connected, thereby the utility model discloses an enlarger can be on the basis of the drilling rod is connected at both ends the required power of broken rock of automatic the providing.

The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An autonomously powered reamer, comprising: the device comprises a hollow universal shaft assembly (1), a motor assembly (2), a transmission cutter assembly (3), a cutter (4) and a connecting drill rod (5) which are arranged on the same axis; connect drilling rod (5) to run through the middle part of cavity formula cardan shaft assembly (1), motor assembly (2), transmission cutter disc assembly (3) and cutter disc (4) and be connected with the drilling rod at both ends, motor assembly (2) include stator (2-2) and can be in stator (2-2) planet pivoted rotor (2-1), the one end of stator (2-2) with be connected drilling rod (5) thread sealing connection, be equipped with in the other end cavity of stator (2-2) cavity formula cardan shaft assembly (1), the one end of cavity formula cardan shaft assembly (1) with rotor (2-1) threaded connection, the other end of cavity formula cardan shaft assembly (1) passes through transmission groove tooth structure (6) and connects transmission cutter disc assembly (3), transmission cutter disc assembly (3) cover is established the cavity of stator (2-2) is outside, a bearing assembly is arranged between the transmission cutter head assembly (3) and the stator (2-2), and the cutter head (4) is sleeved on the transmission cutter head assembly (3) through a transmission groove tooth structure (6).

2. The autonomously powered reamer of claim 1, wherein: the hollow universal shaft assembly (1) comprises a middle connecting rod (1-5), one end of the connecting rod (1-5) is connected with a water cap (1-1), the water cap (1-1) is connected with a transmission cutter assembly (3) through the transmission groove tooth structure (6), the other end of the connecting rod (1-5) is connected with a rotor joint (1-7), the rotor joint (1-7) is in threaded connection with the rotor (2-1), and a steel ball (1-6), a semi-ring (1-2), a pressure ring (1-3) and a rubber sleeve (1-4) which seal the steel ball (1-6) and the semi-ring (1-2) in the water cap (1-1) and the rotor joint (1-7) are arranged between the connecting rod (1-5) and the water cap (1-1) and between the connecting rod (1-5) and the rotor joint (1-7).

3. The autonomously powered reamer of claim 1 or 2, wherein: the transmission cutter assembly (3) comprises a transmission shell (3-1), one end of the transmission shell (3-1) is internally connected with the hollow universal shaft assembly (1), the end of the transmission shell (3-1) is externally connected with the cutter (4), and the other end cavity of the transmission shell (3-1) is internally connected with the stator (2-2) through a radial bearing (3-2) and an axial bearing (3-3).

4. The autonomously powered reamer of claim 1 or 2, wherein: the cutter head (4) is a replaceable reaming size cutter head which is a hollow disk body composed of a front sealing plate (4-1), a supporting plate (4-2) and a rear cover plate (4-3), a palm base (4-4) and a detachable palm (4-7) are inserted into the hollow disk body, the palm base (4-4), the detachable palm (4-7) and the supporting plate (4-2) are fixedly connected together through palm fixing screws (4-5), and the front sealing plate (4-1) and the rear cover plate (4-3) are fixedly connected together and connected to the transmission cutter head assembly (3) through cutter head fixing screws (4-6).

5. The autonomously powered reamer of claim 1 or 2, wherein: the transmission groove tooth structure (6) is a hexagonal groove tooth.

6. The autonomously powered reamer of claim 1 or 2, wherein: the side wall of the connecting drill rod (5) close to the port of the rotor (2-1) is provided with a radial slurry channel (5-1) communicated with the interior of the stator (2-2).