Gas turbine nozzle welding device

Abstract

The utility model discloses a gas turbine nozzle welding device which comprises a bottom plate, a fixing block, a fixing plate, an air cylinder, a clamping plate, a jacking plate, a motor, a welding head and a lifting device, the lifting device is arranged, and the motor is driven to enable the welding head to weld a nozzle. A second air cylinder is driven to enable a rack at the upper end of a movable rod to drive a gear to rotate, and a second gear is driven by a connecting rod to rotate and is meshed with a lifting rod, so that the lifting rod drives a jacking plate to ascend, and gas turbine nozzles of different heights can be welded by a welding head; during operation, a worker aligns a clamping block to the middle of a clamping block and presses the clamping block, a second movable rod slides to the concave face of the fifth fixing block on the inclined face of the fifth fixing block, the movable block drives the clamping block to contract inwards, the clamping block clamps and fixes the clamping block, and the connecting strip cannot fall off in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbines, in particular to a gas turbine nozzle welding device. Background Art

[0002] The nozzle is composed of a nozzle body and an internal core. The geometry of the nozzle body is relatively complex, and there are many special shapes, so most of them are formed by casting or forging processes, and then mechanical processing is performed on the relevant mating surfaces. This process is relatively complicated. The casting nozzle requires mold manufacturing, material melting and pouring, and the forging nozzle requires mold forging and still requires mechanical processing, which leads to a long nozzle manufacturing period, waste of manpower and material resources, and increased production costs.

[0003] When optimizing the existing gas turbine nozzle welding equipment, most of the optimization is reflected in the effect of the device on the nozzle welding. For example, the Chinese utility model patent with application number CN201410610209.X discloses a "gas turbine welding structure nozzle and its processing method". The utility model patent sets a secondary oil circuit reinforcement body, passes the upper end of the main fuel flow channel through the third through hole and is welded to the nozzle flange, passes the upper end of the secondary fuel flow channel through the second through hole and is welded to the nozzle flange; welds the nozzle head shell at the lower end of the fuel flow channel; buckles and welds the nozzle support rod; welds the lower end of the main oil circuit nozzle to the upper end of the main fuel flow channel, and welds the lower end of the secondary oil circuit nozzle to the upper end of the secondary fuel flow channel, thereby ensuring the structural strength of the nozzle.

[0004] Although the above method has certain advantages in terms of improvement, it still has certain disadvantages: if the welding heads are all of fixed height, when a larger or smaller gas turbine needs to be welded with a nozzle, the gas turbine cannot be placed on the base plate. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a gas turbine nozzle welding device to solve the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a gas turbine nozzle welding device, including a base plate, a fixed block, a fixed plate, a cylinder, a clamping plate, a top plate, a motor, a welding head and a lifting device, the fixed block is fixed to the upper end of the base plate by bolts, the fixed plate and the fixed block are an integrated structure, one side end of the cylinder passes through the middle of the fixed plate and is fixedly connected to the clamping plate, the motor is installed at the upper end of the top plate, and the lifting device is fixedly installed at the upper right side of the base plate; the lifting device includes a placement block, a second cylinder, a movable rod, a second fixed block, a third fixed block, a roller, a gear, a connecting wheel ... A connecting rod, a fixed bar, a second fixed plate, a second gear, a lifting rod, a connecting bar and a clamping device, the second cylinder is fixedly installed on the upper end of the placement block, the left end of the second cylinder is fixedly connected to the right end of the movable rod, the movable rod passes through the middle of the second fixed block, the roller is fixedly installed at the middle upper end of the third fixed block, the rear side of the connecting rod is fixedly connected to the middle of the gear, the connecting rod passes through the second fixed plate and is fixedly connected to the second gear, the lifting rod moves inside the fixed bar, one side end of the connecting bar is clamped and fixed to the lower end of the lifting rod, and the clamping device is fixedly installed inside the lower end of the lifting rod.

[0009] Preferably, the locking device includes a fourth fixed block, a spring, a fifth fixed block, a movable block, a second movable rod, a clamping block and a locking block, the left side of the spring is welded to the right side of the movable block, the rear end of the second movable rod is hingedly connected to the movable block, the clamping block is installed on both sides of the left end of the movable block, and the locking block is engaged with the clamping block.

[0010] Preferably, the lower ends of the second fixing block, the third fixing block and the second fixing plate are fixedly connected to the bottom plate, and the fixing strips are provided in two groups and are respectively installed on both sides of the lower end of the ejecting plate.

[0011] Preferably, the upper end of the movable rod is provided with a rack meshing with a gear, the second fixing block is provided with two groups, and a small notch is provided on the right side of the fixing bar to enable the second gear to mesh with the rack of the lifting rod.

[0012] Preferably, a rack meshing with the second gear is provided on the right side of the lifting rod, and the placement block is arranged in an I-shape.

[0013] Preferably, the rear end of the fifth fixing block is fixedly connected to the inside of the lifting rod, and the fifth fixing block is arranged in a special shape.

[0014] Preferably, the left side of the locking block is fixedly connected to the right side of the connecting strip.

[0015] Preferably, the spring is made of carbon spring steel, which has the characteristics of low plasticity, strong elasticity and strong stress resistance.

[0016] Preferably, the clamping block is made of high-performance plastic material, which has good impact resistance and crack resistance.

[0017] (III) Beneficial effects

[0018] The utility model provides a gas turbine nozzle welding device. It has the following beneficial effects: by setting a lifting device, a motor is driven to make the welding head weld the nozzle. When welding a higher combustion turbine nozzle, the second cylinder is driven to make the rack on the upper end of the movable rod drive the gear to rotate. The second gear rotates under the drive of the connecting rod and forms a meshing relationship with the lifting rod, so that the lifting rod drives the top moving plate to rise, so that the welding head can weld gas turbine nozzles of different heights.

[0019] The utility model provides a gas turbine nozzle welding device, which has the following beneficial effects: by setting a clamping device, a person aligns the clamping block with the middle of the clamping block and presses it, so that the second movable rod slides on the inclined surface of the fifth fixed block to the concave surface of the fifth fixed block, and the movable block and the clamping block contract inwardly, so that the clamping block clamps and fixes the clamping block, so that the connecting strip will not fall off during operation, and the two lifting rods can be lifted and lowered synchronously by installing the connecting strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the gas turbine nozzle welding device of the utility model;

[0021] Figure 2 It is a schematic diagram of the planar structure of the gas turbine nozzle welding device of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the lifting device of the utility model;

[0023] Figure 4 It is a schematic diagram of a half-section structure of the lifting device of the utility model;

[0024] Figure 5 It is a schematic diagram of the planar structure of the clamping device of the utility model.

[0025] In the figure: base plate 1, fixed block 2, fixed plate 3, cylinder 4, clamping plate 5, push plate 6, motor 7, welding head 8, lifting device 9, placement block 91, second cylinder 92, movable rod 93, second fixed block 94, third fixed block 95, roller 96, gear 97, connecting rod 98, fixed bar 99, second fixed plate 910, second gear 911, lifting rod 912, connecting bar 913, locking device 914, fourth fixed block 9141, spring 9142, fifth fixed block 9143, movable block 9144, second movable rod 9145, clamping block 9146, locking block 9147. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-2 The utility model provides a technical solution for a gas turbine nozzle welding device: a gas turbine nozzle welding device, comprising a base plate 1, a fixing block 2, a fixing plate 3, a cylinder 4, a clamping plate 5, a push plate 6, a motor 7, a welding head 8 and a lifting device 9, the fixing block 2 is fixed to the upper end of the base plate 1 by bolts, the fixing plate 3 and the fixing block 2 are an integrated structure, one side end of the cylinder 4 passes through the middle of the fixing plate 3 and is fixedly connected to the clamping plate 5, the motor 7 is installed at the upper end of the push plate 6, and the lifting device 9 is fixedly installed at the upper right side of the base plate 1.

[0028] See also Figure 3-4 The utility model provides a technical solution for a gas turbine nozzle welding device: a gas turbine nozzle welding device, comprising a lifting device 9, including a placement block 91, a second cylinder 92, a movable rod 93, a second fixed block 94, a third fixed block 95, a roller 96, a gear 97, a connecting rod 98, a fixing bar 99, a second fixing plate 910, a second gear 911, a lifting rod 912, a connecting bar 913 and a clamping device 914, the second cylinder 92 is fixedly installed at the upper end of the placement block 91, the left end of the second cylinder 92 is fixedly connected to the right end of the movable rod 93, the movable rod 93 passes through the middle of the second fixed block 94, the roller 96 is fixedly installed at the middle upper end of the third fixed block 95, the rear side of the connecting rod 98 is fixedly connected to the middle of the gear 97, and the connecting rod 98 passes through The second fixed plate 910 is fixedly connected to the second gear 911, and the lifting rod 912 moves inside the fixed bar 99. One side end of the connecting bar 913 is clamped and fixed with the lower end of the lifting rod 912, and the clamping device 914 is fixedly installed inside the lower end of the lifting rod 912; the second fixed block 94, the third fixed block 95 and the lower end of the second fixed plate 910 are fixedly connected to the bottom plate 1, and the fixed bar 99 is provided with two groups respectively installed on both sides of the lower end of the push plate 6; the upper end of the movable rod 93 is provided with a rack meshing with the gear 97, and the second fixed block 94 is provided with two groups. A small notch is provided on the right side of the fixed bar 99 to enable the second gear 911 and the rack of the lifting rod 912 to mesh; the right side of the lifting rod 912 is provided with a rack meshing with the second gear 911, and the placement block 91 is arranged in an I-shape.

[0029] See also Figure 5The utility model provides a technical solution for a gas turbine nozzle welding device: a gas turbine nozzle welding device, comprising a clamping device 914 including a fourth fixed block 9141, a spring 9142, a fifth fixed block 9143, a movable block 9144, a second movable rod 9145, a clamping block 9146 and a clamping block 9147, the left side of the spring 9142 is welded to the right side of the movable block 9144, the rear end of the second movable rod 9145 is hingedly connected to the movable block 9144, and the clamping block 9146 is installed on On both sides of the left end of the movable block 9144, the locking block 9147 is engaged with the clamping block 9146; the rear end of the fifth fixed block 9143 is fixedly connected to the inside of the lifting rod 912, and the fifth fixed block 9143 is arranged in a special shape; the left side of the locking block 9147 is fixedly connected to the right side of the connecting strip 913; the spring 9142 is made of carbon spring steel, which has the characteristics of low plasticity, strong elasticity and strong stress resistance; the clamping block 9146 is made of high-performance plastic material, which has good impact resistance and crack resistance.

[0030] The working principle is as follows: place the gas turbine and the nozzle on the upper end of the base plate 1, drive the cylinder 4 to make the clamping plate 5 move inward to clamp the gas turbine, drive the motor 7 to make the welding head 8 weld the nozzle, and when welding a higher combustion turbine nozzle, drive the second cylinder 92 to make the rack at the upper end of the movable rod 93 drive the gear 97 to rotate, and the second gear 911 rotates under the drive of the connecting rod 98 and forms a meshing relationship with the lifting rod 912, so that the lifting rod 912 drives the top plate 6 to rise, so that the welding head 8 can weld gas turbine nozzles of different heights. The personnel aligns the locking block 9147 with the middle of the clamping block 9146 and presses it to make the second movable rod 9145 slide on the inclined surface of the fifth fixed block 9143 to the concave surface of the fifth fixed block 9143, and the movable block 9144 and the clamping block 9146 retract inward, and the clamping block 9146 clamps and fixes the locking block 9147, so that the connecting strip 913 will not fall off during operation. By installing the connecting strip 913, the two lifting rods 912 can be lifted and lowered synchronously.

[0031] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0032] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A gas turbine nozzle welding device, comprising a base plate (1), a fixing block (2), a fixing plate (3), a cylinder (4), a clamping plate (5), a top plate (6), a motor (7) and a welding head (8), wherein the fixing block (2) is fixed to the upper end of the base plate (1) by bolts, the fixing plate (3) and the fixing block (2) are an integrated structure, one side end of the cylinder (4) passes through the middle of the fixing plate (3) and is fixedly connected to the clamping plate (5), and the motor (7) is installed on the upper end of the top plate (6). Features: The invention also comprises a lifting device (9), wherein the lifting device (9) is fixedly mounted on the upper right side of the bottom plate (1), and the lifting device (9) comprises a placement block (91), a second cylinder (92), a movable rod (93), a second fixed block (94), a third fixed block (95), a roller (96), a gear (97), a connecting rod (98), a fixing bar (99), a second fixing plate (910), a second gear (911), a lifting rod (912), a connecting bar (913) and a locking device (914), wherein the second cylinder (92) is fixedly mounted on the upper end of the placement block (91), and the left end of the second cylinder (92) is connected to the movable rod (93). The movable rod (93) is fixedly connected to the right end of the second fixed block (93), the movable rod (93) passes through the middle of the second fixed block (94), the roller (96) is fixedly installed at the upper end of the middle of the third fixed block (95), the rear side of the connecting rod (98) is fixedly connected to the middle of the gear (97), the connecting rod (98) passes through the second fixed plate (910) and is fixedly connected to the second gear (911), the lifting rod (912) moves inside the fixing strip (99), one side end of the connecting strip (913) is clamped and fixed with the lower end of the lifting rod (912), and the clamping device (914) is fixedly installed inside the lower end of the lifting rod (912).

2. The gas turbine nozzle welding device according to claim 1, characterized in that: The locking device (914) includes a fourth fixed block (9141), a spring (9142), a fifth fixed block (9143), a movable block (9144), a second movable rod (9145), a clamping block (9146) and a locking block (9147); the left side of the spring (9142) is welded to the right side of the movable block (9144); the rear end of the second movable rod (9145) is hingedly connected to the movable block (9144); the clamping block (9146) is installed on both sides of the left end of the movable block (9144); and the locking block (9147) is locked with the clamping block (9146).

3. The gas turbine nozzle welding device according to claim 1, characterized in that: The lower ends of the second fixing block (94), the third fixing block (95) and the second fixing plate (910) are fixedly connected to the bottom plate (1), and the fixing strips (99) are provided in two groups and are respectively installed on both sides of the lower end of the push plate (6).

4. The gas turbine nozzle welding device according to claim 1, characterized in that: The upper end of the movable rod (93) is provided with a rack meshing with the gear (97), and the right side of the fixed bar (99) is provided with a small notch to allow the second gear (911) and the rack of the lifting rod (912) to mesh.

5. The gas turbine nozzle welding device according to claim 1, characterized in that: A rack meshing with the second gear (911) is provided on the right side of the lifting rod (912).

6. The gas turbine nozzle welding device according to claim 2, characterized in that: The rear end of the fifth fixing block (9143) is fixedly connected to the inside of the lifting rod (912).

7. The gas turbine nozzle welding device according to claim 2, characterized in that: The left side of the locking block (9147) is fixedly connected to the right side of the connecting strip (913).

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