CN210755947U

CN210755947U - Pipe die surfacing machine

Info

Publication number: CN210755947U
Application number: CN201921434982.XU
Authority: CN
Inventors: 徐砚琛
Original assignee: Zhejiang Shenao Machinery Engineering Co Ltd
Current assignee: Hangzhou Chunfeng Mechanical Engineering Co.,Ltd.
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-06-16
Anticipated expiration: 2029-08-31

Abstract

The utility model provides a pipe mould surfacing welding machine, structural design is reasonable, intensity of labour is little, production efficiency is high. The middle part of the swing rod is hinged on the supporting frame; the balancing weight is arranged at one end of the swing rod, and the carbon brush seat is hinged with the other end of the swing rod; the limiting rods are arranged on the swing rods and are positioned on two sides of the carbon brush seat; the carbon brush is arranged on the carbon brush seat; the wire is connected with the carbon brush; the riding wheel device comprises a driving riding wheel mechanism and a driven riding wheel mechanism, and the driving riding wheel mechanism and the driven riding wheel mechanism are arranged side by side; the driving riding wheel mechanism comprises a driving riding wheel, a driving riding wheel bracket and a motor, the driving riding wheel is rotatably arranged on the driving riding wheel bracket, and the motor is connected with the driving riding wheel; the driven riding wheel mechanism comprises a driven riding wheel and a driven riding wheel bracket, and the driven riding wheel is rotatably arranged on the driven riding wheel bracket; the combustion pipe is arranged on the bracket, a flame spraying hole is arranged on the combustion pipe, and the air inlet pipe is connected with the combustion pipe; the catch wheel is rotatably arranged on the catch wheel seat.

Description

Pipe die surfacing machine

Technical Field

The utility model relates to a pipe mould surfacing machine for carry out the surfacing maintenance to the pipe die of centrifugal pipe casting machine.

Background

The tube die is an important component in a centrifugal tube casting machine, as shown in chinese patent application No. 201020270145.0. After the pipe die is used and grown, cracks are possibly generated on the inner wall of a bell mouth or a socket, when the cracks on the inner wall of the pipe die reach a certain depth (more than 2 mm), the inner wall of the pipe die is machined by a lathe, the cracks are turned off, then repair welding is carried out by a welding machine, and grinding and dotting are carried out after the repair welding. At present, the inner wall of a pipe die is subjected to repair welding in a manual handheld welding machine mode, the labor intensity is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a pipe die surfacing machine that structural design is reasonable, intensity of labour is little, production efficiency is high.

The utility model provides a technical scheme that above-mentioned problem adopted is: a pipe mould surfacing machine is characterized in that: the device comprises a welding machine, a grounding device, a riding wheel device, a preheating device and a catch wheel device; the grounding device comprises a support frame, a swing rod, a carbon brush seat, a carbon brush, a lead, a limiting rod and a balancing weight; the middle part of the swing rod is hinged on the supporting frame; the balancing weight is arranged at one end of the swing rod, and the carbon brush seat is hinged with the other end of the swing rod; the limiting rods are arranged on the swing rods and are positioned on two sides of the carbon brush seat; the carbon brush is arranged on the carbon brush seat; the wire is connected with the carbon brush; the riding wheel device comprises a driving riding wheel mechanism and a driven riding wheel mechanism, and the driving riding wheel mechanism and the driven riding wheel mechanism are arranged side by side; the driving riding wheel mechanism comprises a driving riding wheel, a driving riding wheel bracket and a motor, the driving riding wheel is rotatably arranged on the driving riding wheel bracket, and the motor is connected with the driving riding wheel; the driven riding wheel mechanism comprises a driven riding wheel and a driven riding wheel bracket, and the driven riding wheel is rotatably arranged on the driven riding wheel bracket; the preheating device comprises a bracket, a combustion pipe and an air inlet pipe; the combustion pipe is arranged on the bracket, a flame spraying hole is arranged on the combustion pipe, and the air inlet pipe is connected with the combustion pipe; the catch wheel device comprises a catch wheel seat and a catch wheel, and the catch wheel is rotatably arranged on the catch wheel seat; the welding machine, the preheating device, the riding wheel device and the blocking wheel device are sequentially arranged, and the grounding device is arranged beside the driving riding wheel or the driven riding wheel.

Carbon brush seat include interior clamp plate and outer clamp plate, interior clamp plate and outer clamp plate adopt bolted connection, press from both sides the carbon brush in the centre fixedly.

Driven riding wheel support include fixed bolster and rotation support, rotate the support level and rotate and install on the fixed bolster, rotation support and fixed bolster adopt the screw fixation, driven riding wheel rotates and installs on rotating the support.

The rotating bracket on be provided with waist type hole, the screw passes behind the waist type hole will rotate the support and fixed bolster fixed.

The flame projecting hole be a plurality of, set up along the axial of burner tube.

The catch wheel seat of the utility model is two and is arranged in the left and right directions.

Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses can carry out build-up welding operation to pipe die bearing, socket inner wall crackle, degree of automation is high, and equipment cost is low, and intensity of labour is little, and production efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of a partial top view structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the grounding device according to the embodiment of the present invention.

Fig. 4 is a schematic top view of fig. 3.

Fig. 5 is a schematic structural diagram of a preheating device according to an embodiment of the present invention.

Fig. 6 is a schematic top view of the structure of fig. 5.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present invention and are not limited to the following examples.

Referring to fig. 1-6, the embodiment of the present invention includes a welding machine 1, a grounding device 2, a riding wheel device, a preheating device 5, and a catch wheel device 6.

The welding gun on the welding machine 1 can perform axial displacement and lifting displacement, and the welding machine 1 can adopt the prior art. A welder model MZ-1-1000A was used in this example.

The grounding device 2 comprises a support frame 21, a swing rod 22, a carbon brush seat 23, a carbon brush 24, a lead 25, a limiting rod 26 and a balancing weight 27.

The middle part of the swing rod 22 is hinged on the supporting frame 21.

The balancing weight 27 is installed at one end of the swing rod 22, the carbon brush base 23 is hinged to the other end of the swing rod 22, the balancing weight 27 enables the carbon brush base 23 to tilt, and when the pipe die 7 is placed on the riding wheel 31, the carbon brush 24 can be always in contact with the pipe die 7. The carbon brush seat 23 is hinged on the swing rod 22, so that the carbon brush 24 can be adjusted in angle, and can be more conveniently contacted with the pipe dies 7 of different models.

The limiting rod 26 is installed on the swing rod 22 and located on two sides of the carbon brush holder 23, and the limiting rod 26 prevents the carbon brush holder 23 from rotating too much.

The carbon brush 24 is mounted on the carbon brush holder 23. The carbon brush holder 23 includes an inner pressing plate 231 and an outer pressing plate 232, the inner pressing plate 231 and the outer pressing plate 232 are connected through bolts, and the carbon brush 24 is clamped between the inner pressing plate 231 and the outer pressing plate 232 to be fixed, so that the carbon brush 24 is more convenient to install and replace.

Wire 25 is connected with carbon brush 24, and after pipe die 7 placed on riding wheel 31, carbon brush 24 contacted with pipe die 7, made pipe die 7 ground connection through wire 25.

The riding wheel device comprises a driving riding wheel mechanism 3 and a driven riding wheel mechanism 4, wherein the driving riding wheel mechanism 3 and the driven riding wheel mechanism 4 are arranged side by side.

The driving riding wheel mechanism 3 comprises a driving riding wheel 31, a driving riding wheel bracket 32 and a motor 33. The driving idler 31 is rotatably arranged on the driving idler bracket 32. The motor 33 is connected with the driving idler 31.

The driven idler mechanism 4 includes a driven idler 41 and a driven idler holder 42. The driven idler 41 is rotatably mounted on a driven idler support 42. Driven riding wheel support 42 includes fixed bolster 421 and rotates support 422, it installs on fixed bolster 421 to rotate support 422 through the pivot horizontal rotation of vertical setting, it adopts the screw fixation to rotate support 422 and fixed bolster 421, driven riding wheel 41 rotates and installs on rotating support 422, through rotating support 422, make driven riding wheel 41 deflect slightly, like this driven riding wheel 41 will give pipe die 7 an axial force towards fender wheel device 6 when pipe die 7 rotates, make pipe die 7 support and lean on fender wheel 62, play the positioning action, take place not directional cluster when preventing pipe die 7 is rotatory. The rotating bracket 422 is provided with a kidney-shaped hole 423, a screw passes through the kidney-shaped hole 423 to fix the rotating bracket 422 and the fixed bracket 421, and the kidney-shaped hole 423 enables the screw to be aligned with the mounting hole position after the rotating bracket 422 rotates.

The preheating device 5 includes a bracket 51, a combustion pipe 52, and an intake pipe 53.

The combustion pipe 52 is mounted on the bracket 51, and the top of the combustion pipe 52 is provided with a flame projecting hole 54. The plurality of flame ejection holes 54 are provided along the axial direction of the burner tube 52.

The intake pipe 53 is connected to the combustion pipe 52. The inlet pipe 53 is used for introducing liquefied gas or natural gas.

The catch wheel device 6 comprises a catch wheel seat 61 and a catch wheel 62, and the catch wheel 62 is rotatably mounted on the catch wheel seat 61. The number of the baffle wheel seats 61 is two, the baffle wheel seats are arranged on the left and the right, the baffle wheel 62 is arranged on the left baffle wheel seat 61 when six-meter cast pipes are manufactured, and the baffle wheel 62 is arranged on the right baffle wheel seat 61 when eight-meter cast pipes are manufactured.

The welding machine 1, the preheating device 5, the riding wheel device and the catch wheel device 6 are sequentially arranged. The ground engaging means 2 is disposed beside the driving idler 31 or the driven idler 41.

During operation, the pipe die 7 is placed on the driving supporting wheel 31 and the driven supporting wheel 41, a socket or a spigot needing to be welded faces the welding machine 1, the motor 33 drives the driving supporting wheel 31 to rotate, the driving supporting wheel 31 drives the pipe die 7 to rotate, the end of the pipe die 7 abuts against the blocking wheel 62 when the pipe die 7 rotates, and then the welding machine 1 stretches into the pipe die 7 to carry out surfacing operation on cracks. The method comprises the steps of preheating a part to be welded to 200-300 ℃ through a preheating device 5 before surfacing of a pipe die 7, carrying out heat preservation on the welded part of the pipe die for 1-2 hours at the temperature of 400-500 ℃ after surfacing to carry out annealing so as to eliminate welding stress, feeding gas into an air inlet pipe 53 before surfacing and after surfacing of the pipe die 7, igniting the gas on a flame spraying hole 54 so that the gas is combusted, and spraying the fire from the flame spraying hole 54 to heat the pipe die 7 on the flame spraying hole.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A pipe mould surfacing machine is characterized in that: the device comprises a welding machine, a grounding device, a riding wheel device, a preheating device and a catch wheel device; the grounding device comprises a support frame, a swing rod, a carbon brush seat, a carbon brush, a lead, a limiting rod and a balancing weight; the middle part of the swing rod is hinged on the supporting frame; the balancing weight is arranged at one end of the swing rod, and the carbon brush seat is hinged with the other end of the swing rod; the limiting rods are arranged on the swing rods and are positioned on two sides of the carbon brush seat; the carbon brush is arranged on the carbon brush seat; the wire is connected with the carbon brush; the riding wheel device comprises a driving riding wheel mechanism and a driven riding wheel mechanism, and the driving riding wheel mechanism and the driven riding wheel mechanism are arranged side by side; the driving riding wheel mechanism comprises a driving riding wheel, a driving riding wheel bracket and a motor, the driving riding wheel is rotatably arranged on the driving riding wheel bracket, and the motor is connected with the driving riding wheel; the driven riding wheel mechanism comprises a driven riding wheel and a driven riding wheel bracket, and the driven riding wheel is rotatably arranged on the driven riding wheel bracket; the preheating device comprises a bracket, a combustion pipe and an air inlet pipe; the combustion pipe is arranged on the bracket, a flame spraying hole is arranged on the combustion pipe, and the air inlet pipe is connected with the combustion pipe; the catch wheel device comprises a catch wheel seat and a catch wheel, and the catch wheel is rotatably arranged on the catch wheel seat; the welding machine, the preheating device, the riding wheel device and the blocking wheel device are sequentially arranged, and the grounding device is arranged beside the driving riding wheel or the driven riding wheel.

2. The pipe die build-up machine according to claim 1, wherein: the carbon brush holder comprises an inner pressing plate and an outer pressing plate, wherein the inner pressing plate is connected with the outer pressing plate through bolts, and the carbon brush is clamped and fixed in the middle.

3. The pipe die build-up machine according to claim 1, wherein: the driven riding wheel support comprises a fixed support and a rotating support, the rotating support is horizontally and rotatably arranged on the fixed support, the rotating support and the fixed support are fixed through screws, and the driven riding wheel is rotatably arranged on the rotating support.

4. The pipe die build-up machine according to claim 3, wherein: the rotating bracket is provided with a waist-shaped hole, and the rotating bracket and the fixed bracket are fixed after a screw penetrates through the waist-shaped hole.

5. The pipe die build-up machine according to claim 1, wherein: the flame spray holes are multiple and are arranged along the axial direction of the combustion tube.

6. The pipe die build-up machine according to claim 1, wherein: the catch wheel seats are arranged in the left and right directions.