阅读说明：本技术 一种用于风机叶轮表面耐磨强化处理的电弧堆焊工艺及装置 (Arc surfacing process and device for wear-resistant strengthening treatment of surface of fan impeller ) 是由 胡雪 郑雄飞 张立新 张胜利 董峰 于 2021-09-22 设计创作，主要内容包括：本发明涉及堆焊装置,特别是一种用于风机叶轮表面耐磨强化处理的电弧堆焊工艺及装置。该装置主要由机架、电弧堆焊头、液压升降装置、焊头横向驱动机、导轨、物料台以及电机构成,堆焊工艺主要包括以下步骤：在保证母材与耐磨合金相互熔合的前提下,降低稀释率以减少母材熔化量。为减少母材熔化量,应注意使堆焊电流减小、电压降低、堆焊速度加快。同时为了控制堆焊后叶轮的变形量,在每一叶片上堆焊完一块粉块后,转动叶轮,在对称叶片相应位置,堆焊另一粉块。该装置可以保证焊头在空间里每一个位置的移动,动作灵活。该工艺可以大大提高风机叶片的使用寿命,同时也使得风机的关键部位使用寿命延长。(The invention relates to a surfacing device, in particular to an arc surfacing process and a device for wear-resistant strengthening treatment of the surface of a fan impeller. The device mainly comprises a frame, an electric arc overlaying welding head, a hydraulic lifting device, a welding head transverse driving machine, a guide rail, a material table and a motor, wherein the overlaying welding process mainly comprises the following steps: on the premise of ensuring the mutual fusion of the base metal and the wear-resistant alloy, the dilution rate is reduced to reduce the fusion amount of the base metal. In order to reduce the amount of fusion of the base metal, attention should be paid to reduction of the surfacing current, reduction of the voltage and acceleration of the surfacing speed. Meanwhile, in order to control the deformation of the impeller after surfacing, after one powder block is surfaced on each blade, the impeller is rotated, and another powder block is surfaced at the corresponding position of the symmetrical blade. The device can ensure the movement of the welding head at each position in space and has flexible action. The process can greatly prolong the service life of the fan blade and simultaneously prolong the service life of key parts of the fan.)

1. The utility model provides an electric arc build-up welding technology and device for fan impeller surface wear-resisting reinforcement treatment, the basic constitution includes frame (1), electric arc pile bonding tool (2), hydraulic pressure elevating gear (3), bonding tool transverse driving machine (4), guide rail (5), material feeding unit (6), motor (6-4), hydraulic pressure elevating gear (3) are arranged on frame (1), bonding tool transverse driving machine (4) and guide rail (5) cooperation, and control about drive electric arc pile bonding tool (2) realization, guide rail (5) the left side and frame (1) cooperation under the drive of hydraulic pressure elevating gear (3) for electric arc pile bonding tool (2) realize the up-and-down motion.

2. The arc surfacing process and device for wear-resistant strengthening treatment of the surface of the fan impeller according to claim 1, wherein the feeding device (6) comprises a feeding table (6-1), a sliding rail (6-2), a sliding table (6-3) and a motor (6-4), the feeding table (6-1) is connected with an output shaft of the motor (6-4) to realize rotary motion, and the motor (6-4) is arranged on the sliding table (6-3).

3. The arc surfacing process and the arc surfacing device for wear-resisting strengthening treatment of the surface of the fan impeller according to claim 1, wherein the dilution rate is reduced to reduce the amount of the melted base metal on the premise of ensuring mutual fusion of the base metal and the wear-resisting alloy, and in order to reduce the amount of the melted base metal, attention should be paid to reduction of surfacing current, reduction of voltage and acceleration of surfacing speed.

4. The arc surfacing process and the arc surfacing device for the wear-resisting strengthening treatment of the surface of the fan impeller according to claim 1, wherein in order to control the deformation of the impeller after surfacing, after one powder block is surfaced on each blade, the impeller is rotated, and another powder block is surfaced at the corresponding position of the symmetrical blade.

Technical Field

The invention relates to the field of surfacing technology and equipment, in particular to an arc surfacing technology and an arc surfacing device for wear-resisting strengthening treatment of the surface of a fan impeller.

Background

With the continuous development of the country, the demand of human beings on electric energy is also more and more huge. At present, the world electric energy is mainly generated by burning conventional energy sources mainly comprising natural resources such as crude oil, but with the gradual exhaustion of the earth energy sources and the global crisis facing the temperature rise, the development of some novel renewable energy sources is a fact that is not slow enough. Among them, wind energy is an excellent renewable energy source, and power generation using wind energy has been an area of major concern in various countries.

The fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, and is widely applied to environments such as factories, mines, tunnels, ships, buildings and the like. Due to the large market demand, the requirements for fan quality and environmental protection and energy conservation are increasingly outstanding. The service life of the fan blade is shortened due to abrasion, and the problem is an important problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to provide an arc surfacing process and an arc surfacing device for wear-resisting strengthening treatment of the surface of a fan impeller, which are used for solving the problem that the impeller is easily worn and loses efficacy due to multiple actions of abrasive wear, erosion wear, thermal wear and the like in the actual working process of the fan impeller provided in the technical background, and the service life of the fan impeller is seriously influenced. The device can ensure the movement of the welding head at each position in space and has flexible action. The process can greatly prolong the service life of the fan blade and simultaneously prolong the service life of key parts of the fan.

In order to achieve the purpose, the invention adopts the following scheme: the invention provides an arc surfacing process and device for wear-resistant strengthening treatment of the surface of a fan impeller, which basically comprise a rack, an arc surfacing head, a hydraulic lifting device, a transverse welding head driving machine, a guide rail, a feeding device and a motor, wherein the hydraulic lifting device is arranged on the rack, the transverse welding head driving machine is matched with the guide rail to drive the arc surfacing head to move left and right, the left side of the guide rail is matched with the rack, and the arc surfacing head is driven by the hydraulic lifting device to move up and down.

Furthermore, material feeding unit includes pay-off platform, slide rail, slip table, motor, and pay-off platform and motor output shaft realize rotary motion, and the motor is arranged on the slip table.

Furthermore, the arc surfacing process and the arc surfacing device for wear-resistant strengthening treatment of the surface of the fan impeller reduce the dilution rate to reduce the melting amount of the base metal on the premise of ensuring mutual fusion of the base metal and the wear-resistant alloy. In order to reduce the amount of fusion of the base metal, attention should be paid to reduction of the surfacing current, reduction of the voltage and acceleration of the surfacing speed.

Furthermore, in order to control the deformation of the impeller after surfacing welding, after one powder block is surfaced on each blade, the impeller is rotated, and another powder block is surfaced at the corresponding position of the symmetrical blade.

Has the advantages that:

compared with the prior art, the invention has the beneficial effects that:

(1) the device can ensure the movement of the welding head at each position in space and has flexible action.

(2) The feeding mode of the device adopts a motor to drive the feeding plate to rotate, so that the workpiece can rotate by 360 degrees.

(3) The process can greatly prolong the service life of the fan blade, simultaneously prolong the service life of key parts of the fan and improve the market competitiveness of the unit fan.

Description of the drawings:

FIG. 1 is a front view showing an arc surfacing process and an arc surfacing device for wear-resisting strengthening treatment of the surface of a fan impeller provided by an embodiment

FIG. 2 shows a side view of a feeding device provided by the embodiment

Description of the main component symbols:

(1) the welding machine comprises a frame, (2) an arc stacking welding head, (3) a hydraulic lifting device, (4) a welding head transverse driving machine, (5) a guide rail, (6) a feeding device, (7) a controller and (8) electric wires.

(6-1) a feeding table, (6-2) a sliding rail, (6-3) a sliding table, and (6-4) a motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figures 1-2, the arc surfacing process and device for wear-resistant strengthening treatment of the surface of the fan impeller basically comprise a rack (1), an arc surfacing welding head (2), a hydraulic lifting device (3), a welding head transverse driving machine (4), a guide rail (5), a feeding device (6) and a motor (6-4), wherein the hydraulic lifting device (3) is arranged on the rack (1), the welding head transverse driving machine (4) is matched with the guide rail (5) to drive the arc surfacing welding head (2) to move left and right, the left side of the guide rail (5) is matched with the rack (1), and the arc surfacing welding head (2) is driven by the hydraulic lifting device (3) to move up and down.

Furthermore, the feeding device (6) comprises a feeding table (6-1), a sliding rail (6-2), a sliding table (6-3) and a motor (6-4), the feeding table (6-1) is connected with an output shaft of the motor (6-4) to realize rotary motion, and the motor (6-4) is arranged on the sliding table (6-3).

Furthermore, on the premise of ensuring the mutual fusion of the base metal and the wear-resistant alloy, the dilution rate is reduced to reduce the fusion amount of the base metal. In order to reduce the amount of fusion of the base metal, attention should be paid to reduction of the surfacing current, reduction of the voltage and acceleration of the surfacing speed.

Further, in order to control the deformation of the impeller after surfacing, after one powder block is surfaced on each blade, the impeller is rotated, and another powder block is surfaced at the corresponding position of the symmetrical blade.

An arc surfacing process and a device for wear-resistant strengthening treatment of the surface of a fan impeller have the following working principle and working process:

the hydraulic lifting device (3) is arranged on the rack (1), the welding head transverse driving machine (4) is matched with the guide rail (5), the electric arc stacking welding head (2) is driven to move left and right, the left side of the guide rail (5) is matched with the rack (1), the electric arc stacking welding head (2) is driven by the hydraulic lifting device (3) to move up and down, the motor (6-4) is arranged on the sliding table (6-3), and the feeding table (6-1) is connected with an output shaft of the motor (6-4) to achieve rotary motion.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.