Petroleum pipeline cutting device

Abstract

The utility model discloses a petroleum pipeline cutting device which comprises a base, a clamp assembly and a cutting assembly. The clamp assembly comprises a first clamp, a second clamp and a first driving part, the first clamp and the second clamp are oppositely arranged on the base front and back, and the first driving part is connected with the first clamp and the second clamp; the cutting assembly comprises a support, a second driving part, a third driving part, a rotating shaft and a cutting drill bit, the support is fixedly arranged on the base, the rotating shaft is vertically arranged on the support and can horizontally rotate relative to the support, the second driving part is connected with the rotating shaft, the third driving part is connected with the rotating shaft, and the cutting drill bit is detachably connected with the rotating shaft and is cylindrical. A plurality of cutting teeth are evenly arranged on the circumferential edge of the bottom of the cutting drill bit in the circumferential direction. According to the device, petroleum pipelines with different sizes and specifications within a certain range can be automatically clamped, and arc-shaped notches can be automatically cut, so that subsequent welding operation on the petroleum pipelines is facilitated.

Description

Technical Field

[0001] The utility model relates to the cutting field, in particular to a petroleum pipeline cutting device. Background Art

[0002] In the processing of oil pipelines, it is often necessary to weld different oil pipelines together. Before welding, in order to ensure the subsequent welding is reliable, the oil pipeline needs to be cut into an arc cut. For example, two opposite pipes, one pipe needs to be a concave arc, and the other pipe needs to be a convex arc. The two need to match each other and can be welded together more firmly after docking. At present, in actual processing, manual cutting is generally adopted, that is, using a device such as an angle grinder to cut out the approximate shape first, and then grinding it, which is troublesome, time-consuming and labor-intensive, and needs to be improved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a petroleum pipeline cutting device.

[0004] The technical solution of the utility model is as follows: A petroleum pipeline cutting device, characterized in that it comprises: a base, a clamp assembly and a cutting assembly;

[0005] The clamp assembly comprises a first clamp, a second clamp and a first driving member, the first clamp and the second clamp are arranged on the base in a front-to-rear manner, the rear surface of the first clamp and the front surface of the second clamp are respectively provided with a V-shaped limit groove, the two V-shaped limit grooves are symmetrical front to back, the first driving member is respectively connected to the first clamp and the second clamp, and the first driving member is used to drive the first clamp and the second clamp to move synchronously toward or away from each other in the front-to-rear direction;

[0006] The cutting assembly includes a bracket, a second driving member, a third driving member, a rotating shaft and a cutting drill bit. The bracket is fixed on the base, the rotating shaft is vertically arranged on the bracket and can rotate horizontally relative to the bracket, the second driving member is connected to the rotating shaft to drive the rotating shaft to move up and down, the third driving member is connected to the rotating shaft to drive the rotating shaft to rotate horizontally, the cutting drill bit is detachably connected to the rotating shaft, the cutting drill bit is cylindrical, and a plurality of cutting teeth are evenly arranged circumferentially on the bottom circumference of the cutting drill bit.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] The device can clamp and fix the oil pipeline to be cut by means of a clamp assembly with a V-shaped limit groove, and then drive a cylindrical cutting drill bit with cutting teeth to rotate and move downward, so as to cut an arc-shaped incision, thereby facilitating the subsequent welding operation of the oil pipeline.

[0009] The device can realize automatic clamping and automatic cutting of oil pipelines of different sizes and specifications within a certain range. It has a wide range of applications and high operating efficiency, and can greatly reduce human labor intensity and labor costs.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0012] Figure 1 It is a left schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the right side of the utility model;

[0014] Figure 3 It is a schematic diagram of the cutting drill bit part of the utility model;

[0015] Figure 4 It is a schematic diagram of the cutting drill bit part of the utility model;

[0016] Figure 5 It is a schematic diagram of an oil pipeline with an arc-shaped cut.

[0017] Reference numerals:

[0018] 1. Base; 2. First clamp; 3. Second clamp; 4. First motor; 5. Screw; 6. Limiting groove; 7. Bracket; 8. Hydraulic telescopic cylinder; 9. Second motor; 10. Transmission; 11. Rotating shaft; 12. Casing; 13. Hexagon socket screw; 14. Cutting drill bit. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0023] like Figure 1-Figure 4 The oil pipeline cutting device shown comprises: a base 1, a clamp assembly and a cutting assembly.

[0024] like Figure 1 As shown, the clamp assembly includes a first clamp 2, a second clamp 3 and a first driving member. The first clamp 2 and the second clamp 3 are arranged on the base 1 in front and back. The rear surface of the first clamp 2 and the front surface of the second clamp 3 are respectively provided with V-shaped limit grooves 6. The two V-shaped limit grooves 6 are symmetrical front to back. The first driving member is respectively connected to the first clamp 2 and the second clamp 3. The first driving member is used to drive the first clamp 2 and the second clamp 3 to move synchronously closer to or away from each other in the front and back directions.

[0025] Specifically, when the first clamp 2 and the second clamp 3 move synchronously toward each other in the front-to-back direction, the oil pipeline between them can be clamped, and when the first clamp 2 and the second clamp 3 move synchronously away from each other in the front-to-back direction, the oil pipeline between them can be loosened. Since the first clamp 2 and the second clamp 3 are provided with V-shaped limit grooves 6, the two V-shaped limit grooves 6 can firmly clamp the oil pipeline, effectively preventing the oil pipeline from tilting and deviating, and the V-shaped limit grooves 6 have good applicability and can clamp oil pipelines of different sizes within a certain range.

[0026] In actual application, the first driving member includes a first motor 4 and a screw 5. A limiting groove 6 extending in the front-to-back direction is provided on the base 1. The screw 5 is rotatably arranged in the limiting groove 6. The first motor 4 is fixed on the base 1. The motor shaft of the first motor 4 is connected to the screw 5. The screw 5 includes a first rod segment and a second rod segment. The first rod segment and the second rod segment are respectively provided with external threads and the external threads of the two are rotated in opposite directions. The first clamp 2 and the second clamp 3 are respectively embedded in the limiting groove 6. The first clamp 2 is provided with a first screw hole, and the second clamp 3 is provided with a second screw hole. The first screw hole is threadedly connected to the first rod segment, and the second screw hole is threadedly connected to the second rod segment.

[0027] Therefore, after the first motor 4 drives the screw 5 to rotate, the first clamp 2 and the second clamp 3 can be driven to move toward or away from each other synchronously. This driving form is simple, and the threaded connection has self-locking properties and is not easy to loosen.

[0028] like Figure 2-Figure 4 As shown, the cutting assembly includes a bracket 7, a second driving member, a third driving member, a rotating shaft 11 and a cutting drill bit 14. The bracket 7 is fixed on the base 1, the rotating shaft 11 is vertically arranged on the bracket 7 and can rotate horizontally relative to the bracket 7, the second driving member is connected to the rotating shaft 11 to drive the rotating shaft 11 to move up and down, the third driving member is connected to the rotating shaft 11 to drive the rotating shaft 11 to rotate horizontally, and the cutting drill bit 14 is detachably connected to the rotating shaft 11. The cutting drill bit 14 is cylindrical, and a plurality of cutting teeth are evenly arranged on the circumferential edge of the bottom of the cutting drill bit 14 along the circumferential direction.

[0029] Specifically, when the oil pipeline to be cut is fixed by the first clamp 2 and the second clamp 3, the third driving member drives the cutting drill 14 to rotate, and the second driving member drives the cutting drill 14 to move downward, so that the oil pipeline can be cut. Since the cutting drill 14 is cylindrical and a plurality of cutting teeth are evenly arranged on the bottom circumference along the circumferential direction, the oil pipeline can be cut out as follows: Figure 5 The arc-shaped incision shown here makes it easier to perform subsequent welding operations on the oil pipeline.

[0030] In actual application, the second driving member includes a hydraulic telescopic cylinder 8, one end of which is connected to the bracket 7, and the other end is connected to the rotating shaft 11. After the hydraulic telescopic cylinder 8 is connected to the external oil supply system, it can drive the cutting drill bit 14 to move up and down through its own telescopic movement.

[0031] The third driving member includes a second motor 9 and a transmission 10. The second motor 9 is fixedly arranged on the housing of the transmission 10. The motor shaft of the second motor 9 is fixedly connected to the input shaft of the transmission 10. The housing of the transmission 10 is fixedly connected to the second driving member. The rotating shaft 11 is fixedly connected to the output shaft of the transmission 10. The second motor 9 can drive the rotating shaft 11 to rotate through the transmission 10.

[0032] The cutting drill bit 14 in the device is detachably connected to the drill shaft. In practical applications, the corresponding cutting drill bit 14 can be replaced according to the thickness of the oil pipeline and the size of the required arc incision, which is more flexible to use. Figure 3 As shown in the figure, a sleeve 12 is fixedly provided on the upper end of the cutting drill bit 14, and the sleeve 12 is sleeved on the rotating shaft 11. A hexagon socket screw 13 is threadedly connected on the tube wall of the sleeve 12. The hexagon socket screw 13 squeezes the rotating shaft 11 to fix the sleeve 12. Therefore, the cutting drill bit 14 can be replaced by loosening the hexagon socket screw 13, which is relatively convenient.

[0033] In summary, the device can clamp and fix the oil pipeline to be cut by means of the clamp assembly with V-shaped limit groove 6, and then drive the cylindrical cutting drill bit 14 with cutting teeth to rotate and move downward, so as to cut an arc incision, thereby facilitating the subsequent welding operation of the oil pipeline.

[0034] The device can realize automatic clamping and automatic cutting of oil pipelines of different sizes and specifications within a certain range. It has a wide range of applications and high operating efficiency, and can greatly reduce human labor intensity and labor costs.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A petroleum pipeline cutting device, characterized in that: include: base, fixture assembly and cutting assembly; The clamp assembly comprises a first clamp, a second clamp and a first driving member, the first clamp and the second clamp are arranged on the base in a front-to-rear manner, the rear surface of the first clamp and the front surface of the second clamp are respectively provided with a V-shaped limit groove, the two V-shaped limit grooves are symmetrical front to back, the first driving member is respectively connected to the first clamp and the second clamp, and the first driving member is used to drive the first clamp and the second clamp to move synchronously toward or away from each other in the front-to-rear direction; The cutting assembly includes a bracket, a second driving member, a third driving member, a rotating shaft and a cutting drill bit. The bracket is fixed on the base, the rotating shaft is vertically arranged on the bracket and can rotate horizontally relative to the bracket, the second driving member is connected to the rotating shaft to drive the rotating shaft to move up and down, the third driving member is connected to the rotating shaft to drive the rotating shaft to rotate horizontally, the cutting drill bit is detachably connected to the rotating shaft, the cutting drill bit is cylindrical, and a plurality of cutting teeth are evenly arranged circumferentially on the bottom circumference of the cutting drill bit.

2. The oil pipeline cutting device according to claim 1, characterized in that: The first driving member includes a first motor and a screw rod, the base is provided with a limiting groove extending in the front-to-back direction, the screw rod is rotatably arranged in the limiting groove, the first motor is fixedly arranged on the base, the motor shaft of the first motor is connected to the screw rod, the screw rod includes a first rod segment and a second rod segment, the first rod segment and the second rod segment are respectively provided with external threads and the external threads of the two are rotated in opposite directions, the first clamp and the second clamp are respectively embedded in the limiting groove, the first clamp is provided with a first screw hole, the second clamp is provided with a second screw hole, the first screw hole is threadedly connected to the first rod segment, and the second screw hole is threadedly connected to the second rod segment.

3. The oil pipeline cutting device according to claim 1, characterized in that: The second driving member comprises a hydraulic telescopic cylinder, one end of which is connected to the bracket, and the other end of which is connected to the rotating shaft.

4. The oil pipeline cutting device according to claim 1, characterized in that: The third driving member includes a second motor and a transmission, the second motor is fixedly arranged on the housing of the transmission, the motor shaft of the second motor is fixedly connected to the input shaft of the transmission, the housing of the transmission is fixedly connected to the second driving member, and the rotating shaft is fixedly connected to the output shaft of the transmission.

5. The oil pipeline cutting device according to claim 1, characterized in that: A sleeve is fixedly provided at the upper end of the cutting drill bit. The sleeve is sleeved on the rotating shaft. A hexagon socket screw is threadedly connected on the tube wall of the sleeve. The hexagon socket screw squeezes the rotating shaft to fix the sleeve.

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