Linear hot press for stator bar of steam turbine generator

Abstract

The utility model relates to the technical field of electromagnetic wire processing and forming of large and medium-sized generators, and discloses a steam turbine generator stator bar linear hot press which comprises a base. The front bracket is arranged at the front end of the base; the auxiliary frames are mounted on the left side and the right side of the base; and a die holder is fixedly arranged at the top end of the base. A coil bar production line is formed by connecting with front and rear process equipment, semi-automatic production is achieved, the coil bar production efficiency is improved, coil bar mold filling is conducted, two persons horizontally push the molds onto the assembling and disassembling lifting plate layer by layer, the assembling and disassembling lifting plate falls into a pressing cavity in the inner side of a shell, reverse operation is conducted during demolding, and the hoisting link is omitted; the labor intensity of workers is reduced, the number of operators is reduced, the time of mold mounting and demolding is saved, and the heating speed is high by adopting three sets of heating beams to heat a coil bar and adding one set of heating beams; and the functions of an operation auxiliary device are integrated in the equipment, so that the production process is optimized, the labor intensity of workers is reduced, and the use area of operation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to large and medium -sized generator electromagnetic wire processing forming technical field, concretely is steam turbine generator stator bar straight line hot press. BACKGROUND

[0002] At present, steam turbine generator stator bar straight line hot press is all single -process equipment processing, and then is carried to next process for processing through artificial (or line and hangs).

[0003] But still have following shortcoming:

[0004] 1, equipment can not and other process equipment connect and form bar production assembly line.

[0005] 2, the dismounting of bar mould, the mould is assembled on the platform by artificial, then the assembled mould is hoisted to the pressing cavity, the mould is hoisted to the dismounting platform from the pressing cavity, and the bar is removed by artificial, the operation is complicated, the labor intensity is high, three people are needed to operate simultaneously, and the mould dismounting time is long.

[0006] 3, bar heating beam has only two sets of face -to -face heating beam, and the required heating time is long during operation.

[0007] 4, the area occupied by equipment and operation auxiliary supporting device is big.

[0008] Therefore, a steam turbine generator stator bar straight line hot press is provided to solve the above problems. UTILITY MODEL CONTENTS

[0009] The utility model aims at providing steam turbine generator stator bar straight line hot press to solve the problems in the above background.

[0010] To realize the above -mentioned purpose, the utility model provides the following technical scheme: steam turbine generator stator bar straight line hot press, including base,

[0011] Front support is arranged at the front end of the base,

[0012] And the auxiliary frame is installed on the left and right sides of the base,

[0013] The base top is fixedly provided with a die holder, a lifting mechanism is arranged between the two auxiliary frames, and the lifting mechanism is staggered with the die holder.

[0014] The front end top surface of the die holder is provided with a roller conveyor line, the front surface of the front support is provided with a die plate, and the back surface of the die plate is horizontally provided with a die library lifting plate between the front surface of the die holder.

[0015] The die library control device is connected with the mold plate through a sliding mechanism, and the die library lifting plate is connected with the front support.

[0016] Preferably, the back surface of the base is provided with a cooling water pipe through a connecting piece, and one end of the cooling water pipe is provided with a water inlet pipe.

[0017] Preferably, the mold base comprises a shell, the bottom surface of the shell is fixedly connected with the top surface of the base, an electro-hydraulic reversing valve is fixedly arranged on the back surface of the shell, an upper pressing oil cylinder is fixedly arranged on the inner side of the top end of the shell, the output rod of the upper pressing oil cylinder extends to the inner side of the shell, and an upper pressing beam is fixedly arranged on the bottom surface of the output rod of the upper pressing oil cylinder.

[0018] Preferably, the sliding mechanism comprises a sliding rail one, the sliding rail one is fixedly arranged on the front surface of the front support, a sliding rail block one is slidably arranged on the sliding rail one, and the top end of the sliding rail block one is fixedly connected with the bottom surface of the die library control device through fixedly connected supporting legs.

[0019] Preferably, the inner side of the shell is fixedly provided with a lower reference heating beam, the lower reference heating beam is arranged in correspondence with the upper pressing beam, a side reference heating beam and a side moving heating beam are symmetrically arranged above the lower reference heating beam, the front surface of the side reference heating beam is fixedly connected with the inner side of the shell, a threaded rod is horizontally arranged on the side surface of the shell, the threaded rod is fixedly arranged on the front end of the fixed plate through a threaded hole, the side surface of the shell is fixedly connected with the side surface of the fixed plate, and the front end of the threaded rod is connected with the back surface of the side moving heating beam through a bearing seat.

[0020] Preferably, the lifting mechanism comprises a speed reducer and a lifting machine, the side surface of the speed reducer is fixedly connected with the side surface of the shell, the lifting machine is staggered with the shell, a conductive rod is horizontally arranged above the shell, the speed reducer is drivingly connected with the lifting machine through the conductive rod, the lifting machine at two ends is an end lifting machine, and the lifting machine in the middle is a middle lifting machine.

[0021] Preferably, the lifting machine comprises a lifter and a lead screw, the lead screw is assembled with the lifter, a connecting rod is fixedly arranged at the bottom end of the lead screw, and a demoulding lifting plate is connected at the bottom end of the connecting rod.

[0022] Preferably, the side surface of the connecting rod is fixedly provided with a sliding rail block two, the side surface of the connecting rod is provided with a sliding rail two, the side surface of the sliding rail two is fixedly connected with the side surface of the shell close to the sliding rail two, and the sliding rail block two is slidably arranged on the surface of the sliding rail two.

[0023] Compared with the prior art, the steam turbine generator stator bar straight heat press,

[0024] 1), through with the former and latter process equipment connection constitutes the production line, realizes the semi-automatic production, improves the production efficiency of the wire rod;

[0025] 2), through the wire rod mold filling by two people push the mold into the loading and unloading plate, loading and unloading plate into the shell inside the pressing cavity, demolding reverse operation, saves the lifting link; reduce the labor intensity, reduce the operator, save the loading and unloading time;

[0026] 3), through the wire rod heating mode adopts three sets of heating beam heating, more a set of heating beam heating speed is fast; and the functions of the operation auxiliary device are integrated in the equipment, the production process is optimized, the labor intensity is reduced, and the use area of operation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall front structure of the utility model three-dimensional schematic diagram;

[0028] Figure 2 is the overall rear structure of the utility model three-dimensional schematic diagram;

[0029] Figure 3 is the local structure of the utility model three-dimensional view;

[0030] Figure 4 is the lifting mechanism structure of the utility model three-dimensional schematic diagram;

[0031] Figure 5 is the local structure of the utility model three-dimensional schematic diagram of lifting mechanism;

[0032] Figure 6 is the internal structure of the utility model mold base three-dimensional schematic diagram.

[0033] In the drawing: 1 base, 2 front support, 21 slide rail one, 22 slide rail block one, 3 auxiliary frame, 4 mold base, 41 shell, 42 upper pressure cylinder, 43 upper pressure beam, 44 lower reference heating beam, 45 side reference heating beam, 46 side moving heating beam, 47 threaded rod, 5 lifting mechanism, 51 speed reducer motor, 52 elevator, 521 elevator, 522 screw rod, 523 connecting rod, 524 slide rail block two, 525 slide rail two, 526 loading and unloading plate, 53 transmission rod, 6 roller conveying line, 7 mold plate, 8 mold base lifting plate, 9 mold base control device, 10 electro-hydraulic reversing valve, 11 cooling water pipe, 12 water inlet pipe. DETAILED DESCRIPTION

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. Embodiments

[0035] Please refer to Figures 1-6 The present application provides a technical solution: a straight heat press for stator bars of a steam turbine generator, comprising a base 1;

[0036] A front support 2 is arranged at the front end of the base 1;

[0037] And an auxiliary frame 3 is installed on the left and right sides of the base 1;

[0038] A die holder 4 is fixedly arranged at the top end of the base 1, a lifting mechanism 5 is arranged between the two auxiliary frames 3, and the lifting mechanism 5 is staggered with the die holder 4;

[0039] A roller conveyor 6 is arranged on the top surface of the front end of the die holder 4, a die plate 7 is arranged on the front surface of the front support 2, and a die library lifting plate 8 is arranged horizontally between the back surface of the die plate 7 and the front surface of the die holder 4;

[0040] A die library control device 9 is arranged at the front end of the die plate 7, the die library control device 9 is connected with the die plate 7 through a sliding mechanism, and the die library lifting plate 8 is connected with the front support 2;

[0041] A cooling water pipe 11 is arranged on the back surface of the base 1 through a connecting piece, and a water inlet pipe 12 is arranged at one end of the cooling water pipe 11;

[0042] The sliding mechanism comprises a sliding rail 1 21, the sliding rail 1 21 is fixedly arranged on the front surface of the front support 2, a sliding rail block 1 22 is slidably arranged on the sliding rail 1 21, and the sliding rail block 1 22 is fixedly connected with the bottom surface of the die library control device 9 through a fixedly connected supporting leg at the top end;

[0043] The mold seat 4 comprises a shell 41, the bottom surface of the shell 41 is fixedly connected with the top surface of the base 1, the back surface of the shell 41 is fixedly provided with the electro-hydraulic reversing valve 10, the top end inner side is fixedly provided with the upper pressing oil cylinder 42, the output rod bottom end of the upper pressing oil cylinder 42 extends to the inner side of the shell 41, the output rod bottom surface of the upper pressing oil cylinder 42 is fixedly provided with the upper pressing beam 43, the inner side top surface of the shell 41 is fixedly provided with the lower reference heating beam 44, the lower reference heating beam 44 is correspondingly provided with the upper pressing beam 43, the side reference heating beam 45 and the side moving heating beam 46 are symmetrically provided above the lower reference heating beam 44, the front surface of the side reference heating beam 45 is fixedly connected with the inner side surface of the shell 41, the horizontal screw rod 47 is provided on the side surface of the shell 41, the front end of the screw rod 47 is fixedly provided through the fixed plate, the side surface of the shell 41 is fixedly connected with the side surface of the fixed plate, the front end of the screw rod 47 is connected with the back surface of the side moving heating beam 46 through the bearing seat; Embodiment

[0044] Please refer to Figures 1-6 On the basis of the first embodiment, further obtained: the lifting mechanism 5 comprises a speed reducer motor 51 and a lifting machine 52, the side surface of the speed reducer motor 51 is fixedly connected with the side surface of the shell 41, the lifting machine 52 is staggered with the shell 41, the horizontal transmission rod 53 is provided above the shell 41, the speed reducer motor 51 is drivingly connected with the lifting machine 52 through the transmission rod 53, the two end lifting machines 52 are end lifting machines, and the middle lifting machine 52 is a middle lifting machine, the lifting machine 52 is fixedly connected with the side surface of the shell 41 close to it;

[0045] The lifting machine 52 comprises a lifter 521 and a lead screw 522, the lead screw 522 is assembled with the lifter 521, the bottom end of the lead screw 522 is fixedly provided with a connecting rod 523, the bottom end of the connecting rod 523 is connected with a mold lifting plate 526, the side surface of the connecting rod 523 is fixedly provided with a sliding rail block two 524, the side surface of the connecting rod 523 is provided with a sliding rail two 525, the side surface of the sliding rail two 525 is fixedly connected with the side surface of the shell 41 close to it, and the sliding rail block two 524 is slidingly arranged on the surface of the sliding rail two 525.

[0046] First, the current use mold is stored in the mold library, the operator puts the first mold plate on the cylinder line, sends it to the corresponding pressing line rod position, presses the mold library lifting plate up button on the button box, and makes the lifting plate surface rise to be flush with the upper surface of the cylinder (visual inspection), then the operator pulls the first mold plate into the lifting plate, and completes the first mold plate storage operation; then the operator puts the second mold plate on the cylinder line, sends it to the corresponding pressing line rod position, presses the mold library lifting plate down button on the button box, and makes the first mold plate surface flush with the upper surface of the cylinder (visual inspection), then the operator pulls the second mold plate into the mold library, and completes the second mold plate storage operation; all mold storage operations are completed in sequence.

[0047] The mold loading operation is performed as follows: the operator presses the mold loading and unloading lifting plate up button on the button box to make the mold loading and unloading lifting plate support the mold face to be flush with the upper surface of the roller (measured by eyesight), then presses the mold magazine lifting plate up button on the button box to make the lower surface of the first mold plate to be flush with the upper surface of the roller; then the operator pushes the first mold plate from the mold magazine to the mold loading and unloading lifting plate until the first mold plate abuts against the mold limiting stopper, at this time, the first mold plate is installed in place. The operator presses the mold loading and unloading lifting plate down button on the button box to make the upper surface of the first mold plate to be flush with the upper surface of the roller (measured by eyesight), then presses the mold magazine lifting plate up button on the button box to make the lower surface of the second mold plate to be flush with the upper surface of the roller (measured by eyesight), then the operator pushes the second mold plate from the mold magazine to the first mold plate until the second mold plate abuts against the mold limiting stopper, at this time, the second mold plate is installed in place; then the operator sends the wire rod to the mold loading position from the feeding end of the roller and stops, pushes the wire rod into the first mold plate until the wire rod abuts against the second mold plate, then pushes the third mold plate from the mold magazine to the first mold plate and makes the third mold plate abut against the wire rod, and the first layer of wire rod filling is completed. The remaining mold plates and wire rods are sequentially operated to be filled into the mold cavity.

[0048] The typical process of compression molding is as follows: after the wire rod mold is loaded into the compression mold cavity, initial compression (folding the mold, low pressure 4-6 MPa) is performed first, then pressure relief and pressure increase are repeated multiple times (2-3 times, which can be set), then heating (the initial temperature is room temperature for the first time every day, and the subsequent temperature is the residual temperature after the previous mold disassembly) is performed, then the temperature is increased to the required process (which can be set and adjusted, and the reference is 100-120°C), full pressure (high pressure, which can be set and adjusted, and the reference is 8-12 MPa) is applied, then the temperature is continuously increased (high temperature, which can be set and adjusted, and the reference is 185°C), then the temperature is kept constant (the time can be set), then the temperature is reduced by circulating cooling, then the temperature is reduced to the set temperature, then the pressure is released, and then the mold disassembly process is performed.

[0049] The mold disassembly operation is performed in the same direction as the mold loading operation, and after the mold disassembly, the surface of the heating beam in the mold cavity is cleaned to prepare for the next mold loading.

[0050] In use, the wire rod production line is connected with the previous and subsequent process equipment to realize semi-automatic production, improve the wire rod production efficiency, and reduce the labor intensity, the number of operators, and the mold loading and unloading time. Three sets of heating beams are used for wire rod heating, and the heating speed is fast. The functions of the operation auxiliary device are integrated in the equipment, the production process is optimized, the labor intensity is reduced, and the operation area is reduced.

[0051] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A straight-line hot press for turbine generator stator bars, comprising a base (1); a front support (2) arranged at the front end of the base (1); and auxiliary frames (3) installed on the left and right sides of the base (1); characterized in that a die holder (4) is fixedly arranged at the top end of the base (1), a lifting mechanism (5) is arranged between the two auxiliary frames (3), and the lifting mechanism (5) and the die holder (4) are arranged alternately; a roller conveyor line (6) is arranged on the top surface of the front end of the die holder (4), a die plate (7) is arranged on the front surface of the front support (2), and a die library lifting plate (8) is horizontally arranged between the back surface of the die plate (7) and the front surface of the die holder (4); a die library control device (9) is arranged at the front end of the die plate (7), the die library control device (9) is connected with the die plate (7) through a sliding mechanism, and the die library lifting plate (8) is connected with the front support (2).

2. The straight line hot press for making stator bars for turbogenerators of claim 1, wherein: A cooling water pipe (11) is arranged on the back surface of the base (1) through a connecting piece, and one end of the cooling water pipe (11) is provided with a water inlet pipe (12).

3. The straight line hot press for making stator bars for turbogenerators of claim 1, wherein: The die holder (4) comprises an outer shell (41), the bottom surface of the outer shell (41) is fixedly connected with the top surface of the base (1), an electro-hydraulic reversing valve (10) is fixedly arranged on the back surface of the outer shell (41), an upper pressing oil cylinder (42) is fixedly arranged on the inner side of the top end, the output rod of the upper pressing oil cylinder (42) extends to the inner side of the outer shell (41), and an upper pressing beam (43) is fixedly arranged on the bottom surface of the output rod of the upper pressing oil cylinder (42).

4. The straight line hot press for making stator bars for turbogenerators of claim 3, wherein: The sliding mechanism comprises a sliding rail one (21), the sliding rail one (21) is fixedly arranged on the front surface of the front support (2), a sliding rail block one (22) is slidably arranged on the sliding rail one (21), and the sliding rail block one (22) is fixedly connected with the bottom surface of the die library control device (9) through fixedly connected supporting legs on the top end.

5. The straight line hot press for making stator bars for turbogenerators of claim 4, wherein: A lower reference heating beam (44) is fixedly arranged on the inner top surface of the outer shell (41), the lower reference heating beam (44) is arranged correspondingly with the upper pressing beam (43), a side reference heating beam (45) and a side moving heating beam (46) are symmetrically arranged in front of and behind the upper reference heating beam (44), the front surface of the side reference heating beam (45) is fixedly connected with the inner side surface of the outer shell (41), a threaded rod (47) is horizontally arranged on the side surface of the outer shell (41), the threaded rod (47) is fixedly arranged through a fixed plate at the front end, the side surface of the outer shell (41) is fixedly connected with the side surface of the fixed plate, and the front end of the threaded rod (47) is connected with the back surface of the side moving heating beam (46) through a bearing seat.

6. The straight line hot press for turbine generator stator bars of claim 5 wherein: The lifting mechanism (5) comprises a speed reducer (51) and an elevator (52), the side surface of the speed reducer (51) is fixedly connected with the side surface of the outer shell (41), the elevators (52) are arranged alternately with the outer shell (41), a conducting rod (53) is horizontally arranged above the outer shell (41), the speed reducer (51) is drivingly connected with the elevators (52) through the conducting rod (53), the elevators (52) at both ends are end elevators, and the elevators (52) in the middle are middle elevators, and the elevators (52) are fixedly connected with the side surfaces of the outer shells (41) close to them.

7. The straight line hot press for making stator bars for turbogenerators of claim 6, wherein: The elevator (52) includes a lifter (521) and a screw rod (522), the screw rod (522) is assembled with the lifter (521), the bottom end of the screw rod (522) is fixedly provided with a connecting rod (523), and the bottom end of the connecting rod (523) is connected with a demolding lifting plate (526).

8. The straight line hot press for making stator bars for turbogenerators of claim 7, wherein: The connecting rod (523) is fixedly provided with a sliding rail block two (524) on the side surface, the connecting rod (523) is provided with a sliding rail two (525) on the side surface, the side surface of the sliding rail two (525) is fixedly connected with the side surface of the shell (41) close to, and the sliding rail block two (524) is slidingly arranged on the surface of the sliding rail two (525).

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