Thermal power plant horizontal pipeline butt welding device

Abstract

The utility model relates to the field of pipeline butt welding, in particular to a thermal power plant horizontal pipeline butt welding device which comprises a bottom plate, a second sliding groove is further formed in the upper portion of the bottom plate, a first installation frame is further fixedly arranged on the upper portion of the bottom plate through bolts, and a lead screw motor is fixedly arranged at one end of the bottom plate through bolts. A rotating shaft of the lead screw motor penetrates through the bottom plate and then is fixedly provided with a two-way lead screw in the second sliding groove, a cleaning mechanism is arranged above the first mounting frame and comprises a second electric push rod, limiting mechanisms which are symmetrically distributed are further arranged above the bottom plate, and each limiting mechanism comprises a limiting frame. First sliding grooves which are symmetrically distributed are formed in the upper portion of the bottom plate, the second sliding groove is located between the first sliding grooves, and a dust blowing fan is fixedly arranged on one side of the first mounting frame; according to the pipeline welding machine, the welding position of a to-be-welded pipeline can be cleaned before welding, cleaned scraps can be blown out and prevented from being sucked by operators, and meanwhile the welding efficiency of the machine is high.

Description

Technical Field

[0001] The utility model relates to the field of pipeline butt welding, in particular to a horizontal pipeline butt welding device for a thermal power plant. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid flows from the high pressure part of the pipeline to the low pressure part after being pressurized by blowers, compressors, pumps and boilers. It can also be conveyed by the fluid's own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, water conservancy projects and various industrial devices.

[0003] Pipes are usually set with a fixed length when leaving the factory. When the pipe is not long enough, it is necessary to use connection tools such as flanges and joints to connect them, or use a welding machine to weld them before putting them into use. Most of the existing welding methods are that operators directly place two pipes on the ground for simple fixation, and then use a welding machine to weld them. This method has a slow welding speed, and when welding, some welding points of the pipes touch the ground and are covered with dust, which will result in poor welding effect of the pipes.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a horizontal pipeline butt welding device for a thermal power plant to solve the above-mentioned technical defects.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A horizontal pipeline butt welding device for a thermal power plant comprises a base plate, a second slide groove is provided above the base plate, a first mounting frame is fixedly provided above the base plate by bolts, a screw motor is fixedly provided at one end of the base plate by bolts, a rotating shaft of the screw motor passes through the base plate and a bidirectional screw is fixedly provided in the second slide groove, a cleaning mechanism is provided above the first mounting frame, the cleaning mechanism comprises a second electric push rod, symmetrically distributed limiting mechanisms are also provided above the base plate, and the limiting mechanism comprises a limiting frame.

[0008] Preferably, a symmetrically distributed first slide groove is opened above the base plate, the second slide groove is located between the first slide grooves, a dust blowing fan is fixedly provided on one side of the first mounting frame, a second mounting frame is fixedly provided inside the other side of the first mounting frame, a threaded knob is provided above the second mounting frame, one end of the knob passes through the second mounting frame and a rotatably connected mounting plate is provided inside the second mounting frame, a first electric push rod is fixedly provided at one end of the mounting plate by bolts, and a welding head is fixedly provided at the telescopic end of the first electric push rod after passing through the mounting plate and the second mounting frame.

[0009] Preferably, one end of the second electric push rod is fixed to the first mounting frame by bolts, and the telescopic end of the second electric push rod passes through the first mounting frame and is fixedly provided with an arc frame, and a symmetrically distributed first limit rod is also provided above the arc frame, and the first limit rod is slidably connected to the first mounting frame, and a rotatably connected circular plate is provided inside the arc frame, and a fixedly connected outer gear ring is provided on the outer side of the circular plate, and a first stepper motor is also fixedly provided on one side of the arc frame by bolts.

[0010] Preferably, the rotating shaft of the first stepper motor is fixedly provided with a spur gear after passing through the arc frame, and the spur gear is meshed with the outer gear ring, and both sides of the circular plate are fixedly provided with array-distributed bristles, and an opening is opened inside the limit frame, and a screw slider is fixedly provided at the bottom of the limit frame, and the screw slider is threadedly connected with the bidirectional screw, and the bottom of the limit frame is also fixedly provided with symmetrically distributed limit sliders, and the limit slider is slidably matched with the first slide groove, and a third electric push rod is fixedly provided at the bottom of the opening, and a first arc roller frame is fixedly provided at the telescopic end of the third electric push rod, and axially distributed rollers are provided inside the first arc roller frame.

[0011] Preferably, the roller is rotatably connected to the first arc-shaped roller frame, hollow limit cylinders are provided on both sides of the third electric push rod, the bottom of the hollow limit cylinder is fixedly connected to the bottom of the opening, and second limit rods are fixedly provided on both sides of the bottom of the first arc-shaped roller frame, and the second limit rods are slidably connected to the hollow limit cylinder.

[0012] Preferably, a fourth electric push rod is fixedly provided above the limit frame by bolts, and a second arc roller frame is fixedly provided after the telescopic end of the fourth electric push rod passes through the limit frame, and an axially distributed roller is also provided at the bottom of the second arc roller frame, and the rollers are rotatably connected to the second arc roller frame, and a symmetrically distributed third limit rod is also fixedly provided above the second arc roller frame.

[0013] Preferably, the third limit rod and the limit frame are both slidably connected, and the shaft of one end of the roller in the second arc roller frame passes through the second arc roller frame and is connected to each other through a transmission belt and a pulley. A second stepper motor is also fixed to one end of the second arc roller frame by bolts, and the rotating shaft of the second stepper motor is connected to the shaft of one of the rollers through a transmission belt and a pulley.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model places two pipes to be welded above the first arc roller frame until the pipes contact the circular plate, then starts the fourth electric push rod to drive the second arc roller frame to press down to compact and limit the pipes, then starts the first stepper motor to drive the circular plate and the brushes on both sides thereof to rotate to brush the welding parts of the two pipes, and at the same time starts the dust blowing fan to blow away the dust and waste scraps brushed out to prevent them from being inhaled by the staff, and after brushing, starts the second electric push rod to retract the arc frame, then starts the screw motor to drive the pipes in the two limiting mechanisms to contact each other, then starts the first electric push rod to push the welding head to the welding part of the pipe, starts the welding head to weld, and at the same time starts the second stepper motor to drive the rollers in the second arc roller frame to rotate, so that the two pipes rotate synchronously to perform full-pipe welding, so that the device can clean the welding part of the pipe to be welded before welding, and can blow out the cleaned waste scraps to prevent them from being inhaled by the operator, and the machine welding efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection structure between the bottom plate and the first mounting frame in the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the cleaning mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the overall structure of the limiting mechanism in the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure between the second stepping motor and the roller in the utility model.

[0022] Legend: 1. Bottom plate; 11. First slide; 12. Second slide; 13. First mounting bracket; 14. Dust blower; 15. Screw motor; 16. Bidirectional screw; 17. Second mounting bracket; 18. Knob; 19. Mounting plate; 20. First electric push rod; 21. Welding head; 3. Cleaning mechanism; 31. Second electric push rod; 32. Arc bracket; 33. First stepper motor; 34. Round plate; 35. Brush; 36. Outer gear ring; 37. Spur gear; 38. First limit rod; 4. Limit mechanism; 41. Limit frame; 42. Screw slider; 43. Limit slider; 44. Opening; 45. Third electric push rod; 46. First arc roller frame; 47. Roller; 48. Hollow limit cylinder; 49. Second limit rod; 50. Second arc roller frame; 51. Second stepping motor; 52. Fourth electric push rod; 53. Third limit rod. 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 Figure 1-Figure 5 As shown, the utility model is a horizontal pipe butt welding device for a thermal power plant, comprising a base plate 1, a symmetrically distributed first slide groove 11 is opened on the top of the base plate 1, a second slide groove 12 is also opened on the top of the base plate 1, the second slide groove 12 is located between the first slide grooves 11, a first mounting frame 13 is fixedly provided on the top of the base plate 1 by bolts, a dust blowing fan 14 is fixedly provided on one side of the first mounting frame 13, a second mounting frame 17 is fixedly provided inside the other side of the first mounting frame 13, a screw motor 15 is fixedly provided at one end of the base plate 1 by bolts, and a rotating shaft of the screw motor 15 passes through the base plate 1 and a bidirectional screw 16 is fixedly provided in the second slide groove 12.

[0025] A threaded knob 18 is provided above the second mounting frame 17, one end of the knob 18 passes through the second mounting frame 17 and a rotatably connected mounting plate 19 is provided inside the second mounting frame 17, one end of the mounting plate 19 is fixed with a first electric push rod 20 by bolts, the telescopic end of the first electric push rod 20 passes through the mounting plate 19 and the second mounting frame 17 and is fixed with a welding head 21, which is used for pipeline welding.

[0026] A cleaning mechanism 3 is provided above the first mounting frame 13, and the cleaning mechanism 3 includes a second electric push rod 31, one end of the second electric push rod 31 is fixed to the first mounting frame 13 by bolts, and the telescopic end of the second electric push rod 31 passes through the first mounting frame 13 and is fixedly provided with an arc frame 32, and a symmetrically distributed first limit rod 38 is also provided above the arc frame 32, and the first limit rod 38 is slidably connected to the first mounting frame 13, and the first limit rod 38 is used to limit the activity of the arc frame 32.

[0027] A rotatably connected circular plate 34 is provided inside the arc frame 32, and a fixedly connected outer ring gear 36 is provided on the outer side of the circular plate 34. A first stepper motor 33 is also fixedly provided on one side of the arc frame 32 by bolts. A spur gear 37 is fixedly provided after the rotating shaft of the first stepper motor 33 passes through the arc frame 32. The spur gear 37 is meshed with the outer ring gear 36. When the first stepper motor 33 is started, it drives the spur gear 37 to rotate, and the spur gear 37 drives the outer ring gear 36 to rotate, and the outer ring gear 36 drives the inner circular plate 34 to rotate. Array-distributed brushes 35 are fixedly provided on both sides of the circular plate 34. The brushes 35 are used to brush away dust at the connection end of the pipe.

[0028] A symmetrically distributed limit mechanism 4 is also provided above the base plate 1, and the limit mechanism 4 includes a limit frame 41, an opening 44 is opened inside the limit frame 41, a screw slider 42 is fixedly provided at the bottom of the limit frame 41, and the screw slider 42 is threadedly connected to the bidirectional screw 16, and a symmetrically distributed limit slider 43 is also fixedly provided at the bottom of the limit frame 41, and the limit slider 43 is slidably matched with the first slide groove 11, and a third electric push rod 45 is fixedly provided at the bottom of the opening 44, and a first arc roller frame 46 is fixedly provided at the telescopic end of the third electric push rod 45, and an axially distributed roller 47 is provided inside the first arc roller frame 46, and the roller 47 is rotatably connected to the first arc roller frame 46.

[0029] Hollow limiting cylinders 48 are provided on both sides of the third electric push rod 45, and the bottom of the hollow limiting cylinder 48 is fixedly connected to the bottom of the opening 44. Second limiting rods 49 are fixedly provided on both sides of the bottom of the first arc-shaped roller frame 46, and the second limiting rods 49 are slidably connected to the hollow limiting cylinder 48.

[0030] A fourth electric push rod 52 is fixedly provided above the limit frame 41 by bolts. The telescopic end of the fourth electric push rod 52 passes through the limit frame 41 and is fixedly provided with a second arc roller frame 50. The bottom of the second arc roller frame 50 is also provided with axially distributed rollers 47. The rollers 47 are all rotatably connected to the second arc roller frame 50. A symmetrically distributed third limit rod 53 is also fixedly provided above the second arc roller frame 50. The third limit rod 53 is slidably connected to the limit frame 41.

[0031] One end axis of the roller 47 in the second arc roller frame 50 passes through the second arc roller frame 50 and is connected to each other through a transmission belt and a pulley. When one of the rollers 47 rotates, the other rollers 47 rotate synchronously. A second stepper motor 51 is also fixed to one end of the second arc roller frame 50 by bolts. The rotating shaft of the second stepper motor 51 is connected to the shaft of one of the rollers 47 through a transmission belt and a pulley. When the second stepper motor 51 is started, all the rollers 47 in the second arc roller frame 50 are driven to rotate.

[0032] The working process and principle of the utility model are as follows:

[0033] When in use, first place the two pipes to be welded above the first arc roller frame 46 until the pipes contact the rollers 47 above the first arc roller frame 46, then start the second electric push rod 31, the second electric push rod 31 drives the arc frame 32 to move downward until the arc frame 32 reaches between the two limit mechanisms 4, then put one end of the two pipes against both sides of the circular plate 34, then start the fourth electric push rod 52, the fourth electric push rod 52 drives the second arc roller frame 50 to press down until the first arc roller frame 46 and the second arc roller frame 50 compact and limit the pipes, then start the first stepper motor 33, the first stepper motor 33 drives the spur gear 37 to rotate, the spur gear 37 drives the outer gear ring 36 to rotate, the outer gear ring 36 drives the circular plate 34 therein to rotate, and the circular plate 34 drives the brushes 35 on both sides thereof to rotate to scrub the welding parts of the two pipes, and at the same time start the dust blowing fan 14 to blow away the dust and waste scraps scrubbed out to prevent the staff from inhaling them;

[0034] After brushing is completed, the second electric push rod 31 is started to retract the arc frame 32, and then the screw motor 15 is started. The screw motor 15 drives the bidirectional screw 16 to rotate, so that the two limit mechanisms 4 above the bottom plate 1 are close to each other until the pipes in the two limit mechanisms 4 are connected. Then, the first electric push rod 20 is started to push the welding head 21 to the welding position of the pipe, and the welding head 21 is started for welding. At the same time, the second stepper motor 51 is started to drive the roller 47 in the second arc roller frame 50 to rotate, so that the two pipes rotate synchronously for welding.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A horizontal pipeline butt welding device for a thermal power plant, comprising a bottom plate (1), characterized in that: A second slide groove (12) is also provided above the base plate (1), a first mounting frame (13) is also fixedly provided above the base plate (1) by means of bolts, a screw motor (15) is fixedly provided at one end of the base plate (1) by means of bolts, a rotating shaft of the screw motor (15) passes through the base plate (1) and a bidirectional screw rod (16) is fixedly provided in the second slide groove (12), a cleaning mechanism (3) is provided above the first mounting frame (13), the cleaning mechanism (3) comprises a second electric push rod (31), and symmetrically distributed limiting mechanisms (4) are also provided above the base plate (1), the limiting mechanism (4) comprises a limiting frame (41).

2. A horizontal pipeline butt welding device for a thermal power plant according to claim 1, characterized in that: A symmetrically distributed first slide groove (11) is provided above the base plate (1), and the second slide groove (12) is located between the first slide grooves (11). A dust blowing fan (14) is fixedly provided on one side of the first mounting frame (13), and a second mounting frame (17) is fixedly provided inside the other side of the first mounting frame (13). A threaded knob (18) is provided above the second mounting frame (17), and one end of the knob (18) passes through the second mounting frame (17) and a rotatably connected mounting plate (19) is provided inside the second mounting frame (17). A first electric push rod (20) is fixedly provided on one end of the mounting plate (19) by bolts, and a welding head (21) is fixedly provided on the telescopic end of the first electric push rod (20) after passing through the mounting plate (19) and the second mounting frame (17).

3. A horizontal pipeline butt welding device for a thermal power plant according to claim 2, characterized in that: One end of the second electric push rod (31) is fixed to the first mounting frame (13) by bolts, and the telescopic end of the second electric push rod (31) passes through the first mounting frame (13) and is fixedly provided with an arc frame (32), and a symmetrically distributed first limit rod (38) is also provided above the arc frame (32), and the first limit rod (38) is slidably connected to the first mounting frame (13), and a rotatably connected circular plate (34) is provided inside the arc frame (32), and a fixedly connected outer gear ring (36) is provided on the outer side of the circular plate (34), and a first stepper motor (33) is also fixedly provided on one side of the arc frame (32) by bolts.

4. A horizontal pipeline butt welding device for a thermal power plant according to claim 3, characterized in that: The rotating shaft of the first stepper motor (33) passes through the arc frame (32) and is fixedly provided with a spur gear (37), which meshes with the outer gear ring (36). Array-distributed bristles (35) are fixedly provided on both sides of the circular plate (34). An opening (44) is provided inside the limit frame (41). A screw slider (42) is fixedly provided at the bottom of the limit frame (41). The screw slider (42) is threadedly connected to the bidirectional screw (16). A symmetrically distributed limit slider (43) is also fixedly provided at the bottom of the limit frame (41). The limit slider (43) is slidably matched with the first slide groove (11). A third electric push rod (45) is fixedly provided at the bottom of the opening (44). A first arc roller frame (46) is fixedly provided at the telescopic end of the third electric push rod (45). An axially distributed roller (47) is provided inside the first arc roller frame (46).

5. A horizontal pipeline butt welding device for a thermal power plant according to claim 4, characterized in that: The roller (47) is rotatably connected to the first arc-shaped roller frame (46); hollow limit cylinders (48) are provided on both sides of the third electric push rod (45); the bottom of the hollow limit cylinder (48) is fixedly connected to the bottom of the opening (44); second limit rods (49) are fixedly provided on both sides of the bottom of the first arc-shaped roller frame (46); the second limit rods (49) are slidably connected to the hollow limit cylinder (48).

6. A horizontal pipeline butt welding device for a thermal power plant according to claim 5, characterized in that: A fourth electric push rod (52) is fixedly provided above the limit frame (41) by means of bolts. A second arc roller frame (50) is fixedly provided after the telescopic end of the fourth electric push rod (52) passes through the limit frame (41). Axially distributed rollers (47) are also provided at the bottom of the second arc roller frame (50). The rollers (47) are all rotatably connected to the second arc roller frame (50). A symmetrically distributed third limit rod (53) is also fixedly provided above the second arc roller frame (50).

7. A horizontal pipeline butt welding device for a thermal power plant according to claim 6, characterized in that: The third limiting rod (53) is slidably connected to the limiting frame (41); one end of the roller (47) in the second arc-shaped roller frame (50) passes through the second arc-shaped roller frame (50) and is connected to each other through a transmission belt and a pulley; a second stepping motor (51) is fixed to one end of the second arc-shaped roller frame (50) by bolts; and a rotating shaft of the second stepping motor (51) is connected to the shaft of one of the rollers (47) through a transmission belt and a pulley.

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