A hydraulic press for laminating magnetic pole cores of generators

Abstract

The present invention relates to the technical field of hydraulic presses, and in particular to a hydraulic press for laminating a magnetic pole core of a generator, which comprises a base, a tailstock, a movable support beam, a fixed beam, a side support device and a laminating drive mechanism, wherein the tailstock is fixedly mounted at the rear end of the base, the fixed beam is fixedly mounted at the front end of the base, an upper pull rod and a lower pull rod are installed between the tailstock and the fixed beam, a plurality of annular positioning grooves are respectively arranged on the upper pull rod and the lower pull rod, the upper pull rod and the lower pull rod pass through the movable support beam, and a plurality of left support guide grooves and right support guide grooves are respectively arranged, a plurality of sliding guide keys are respectively fixedly arranged at the bottom of the left support and the right support, and the sliding guide keys are slidably installed in the corresponding guide grooves, a side support adjustment mechanism is respectively installed at both ends of the base, a mold mounting seat is respectively fixedly mounted on the upper part of the left support and the right support, and the laminating drive device is fixedly mounted on the fixed beam. The device provided by the present invention can adapt to the laminating of magnetic pole cores of generators of different specifications, and the adjustment is convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic presses, and in particular to a generator magnetic pole core lamination hydraulic press. Background Art

[0002] When the pole cores of a hydroelectric generator set are stacked, the pole cores need to be positioned and fixed before being pressed by a hydraulic press. However, traditional pole core stacking hydraulic presses are difficult to adapt to the stacking of generator pole cores of different specifications. Different hydraulic presses need to be replaced according to different specifications. Not only is the purchase cost of the machine relatively high, but it is also very inconvenient to adjust and the pressing efficiency is relatively low. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a generator pole core lamination hydraulic press which can adapt to the lamination of generator pole cores of different specifications and is convenient to adjust, saving time and effort.

[0004] The present invention is achieved through the following technical solutions:

[0005] A generator pole core lamination hydraulic press comprises a base, a tailstock, a movable support beam with walking wheels, a fixed beam, a side support device and a lamination drive mechanism, wherein the tailstock is fixedly installed at the rear end of the base, the fixed beam is fixedly installed at the front end of the base, two upper pull rods and two lower pull rods are installed between the tailstock and the fixed beam, and a plurality of annular positioning grooves are respectively arranged on the upper pull rods and the lower pull rods, and a guide rail is fixedly installed on the base in front of the tailstock, and the walking wheels of the movable support beam are clamped on the guide rail, and the upper pull rod and the lower pull rod respectively pass through the movable support beam and fix the movable support beam through the clamping ring installed at the annular positioning groove. The support beam is limited, and the side support device includes a left support and a right support. A plurality of left support guide grooves and right support guide grooves are opened on the base between the movable support beam and the fixed beam. A plurality of sliding guide keys corresponding to the support guide grooves are fixedly provided at the bottom of the left support and the right support respectively. The sliding guide keys are slidably installed in the corresponding guide grooves and locked with the guide grooves by locking bolts. Side support adjustment mechanisms are respectively installed at both ends of the base to enable the left support and the right support to move along the corresponding guide grooves at the same time. Mold mounting seats are respectively fixedly installed on the upper parts of the left support and the right support, and the stacking drive device is fixedly installed on the fixed beam.

[0006] Furthermore, the side support adjustment mechanism includes an adjustment screw mounting seat fixedly installed at the center positions of both ends of the base, a left-hand adjustment screw and a right-hand adjustment screw, a connecting sleeve is installed in the adjustment screw mounting seat through a bearing, the connecting sleeve is provided with a threaded hole, and the threads at both ends of the threaded hole have opposite rotation directions, one end of the left-hand adjustment screw is installed on the left support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread of the connecting sleeve at this end, and one end of the right-hand adjustment screw is installed on the right support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread of the connecting sleeve at this end.

[0007] Furthermore, a guide rod is installed on the fixed beam, and the stacking drive device is a hydraulic cylinder. An anti-rotation plate is fixedly installed on the end of the piston rod of the hydraulic cylinder, and the upper part of the anti-rotation plate is fixedly connected to the guide rod.

[0008] Furthermore, a through hole is opened at the bottom of the base, an ejection rod is passed through the through hole, an ejection cylinder is fixedly installed under the base, and the end of the piston rod of the ejection cylinder is fixedly connected to the ejection rod.

[0009] Furthermore, the tailstock is divided into two parts, the upper parts of the fixed beam and the movable support beam are respectively provided with two lugs, and the two upper pull rods are respectively arranged at the two lugs of the fixed beam and the movable support beam.

[0010] Furthermore, wheel limiting devices are fixedly installed at both ends of the guide rail.

[0011] Advantageous Effects of the Invention

[0012] A hydraulic press for laminating generator pole cores, wherein a movable support beam can move along a guide rail and be limited by a clamping ring installed at a ring-shaped positioning groove; by adjusting a side support adjustment mechanism, the left support and the right support can be simultaneously moved along the corresponding guide grooves to meet the laminating needs of generator pole cores of different lengths and widths, and the adjustment is very convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a main structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0015] Figure 3 It is a side structural schematic diagram of the present invention.

[0016] In the figure, 1. base, 2. side support device, 3. lower pull rod, 4. guide rail, 5. walking wheel, 6. wheel limiting device, 7. tailstock, 8. snap ring, 9. movable support beam, 10. upper pull rod, 11. anti-rotation plate, 12. guide rod, 13. fixed beam, 14. stacking drive mechanism, 15. left support, 16. through hole, 17. left-hand adjustment screw, 18. adjustment screw mounting seat, 19. right-hand adjustment screw, 20. right support, 21. right support guide groove, 22. left support guide groove, 23. lug, 24. ejector rod, 25. mold mounting seat. DETAILED DESCRIPTION

[0017] A hydraulic press for laminating a magnetic pole core of a generator comprises a base 1, a tailstock 7, a movable support beam 9 with a walking wheel 5, a fixed beam 13, a side support device 2 and a laminating drive mechanism 14. The tailstock is fixedly installed at the rear end of the base, and the fixed beam is fixedly installed at the front end of the base. The tailstock and the base and the fixed beam and the base can be fixedly connected by bolts respectively, which is convenient for disassembly and assembly, and can also be fixed in other ways.

[0018] Two upper pull rods 10 and two lower pull rods 3 are installed between the tailstock and the fixed beam. A plurality of annular positioning grooves (not shown) are respectively arranged on the upper pull rods and the lower pull rods. A guide rail 4 is fixedly installed on the base in front of the tailstock. The walking wheels of the movable support beam are clamped on the guide rail. The movable support beam can be conveniently moved along the guide rail. The upper pull rod and the lower pull rod respectively pass through the movable support beam and limit the movable support beam by a clamping ring 8 installed in the annular positioning groove to adapt to the stacking needs of generator pole cores of different lengths. The adjustment is very convenient and labor-saving, and can withstand a large pressing force.

[0019] The side support device includes a left support 15 and a right support 20. A plurality of left support guide grooves 22 and a right support guide grooves 21 are opened on the base between the movable support beam and the fixed beam. A plurality of sliding guide keys (not shown) corresponding to the support guide grooves are fixedly provided at the bottom of the left support and the right support respectively. The sliding guide keys are slidably installed in the corresponding guide grooves and locked with the guide grooves by locking bolts. Side support adjustment mechanisms are respectively installed at both ends of the base so that the left support and the right support can move along the corresponding guide grooves at the same time. Adjusting the side support adjustment mechanism can change the distance between the left support and the right support to meet the stacking requirements of generator pole cores of different widths. The adjustment is very convenient and labor-saving.

[0020] The upper parts of the left support and the right support are respectively fixedly mounted with a mold mounting seat 25, and the stacking driving device is fixedly mounted on the fixed beam, so as to facilitate the fixing and pressing of the workpiece.

[0021] Further, the side support adjustment mechanism includes an adjustment screw mounting seat 18 fixedly mounted at the center position of both ends of the base, a left-handed adjustment screw 17 and a right-handed adjustment screw 19, a connecting sleeve (not shown) is installed in the adjustment screw mounting seat through a bearing, the connecting sleeve is provided with a threaded hole, and the threads at both ends of the threaded hole are rotated in opposite directions, one end of the left-handed adjustment screw is mounted on the left support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread of the connecting sleeve at this end, and one end of the right-handed adjustment screw is mounted on the right support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread of the connecting sleeve at this end, according to the different widths of the magnetic pole core, the bearing can be rotated manually to drive the connecting sleeve to rotate together. The connecting sleeve rotates, so that the left-handed adjustment screw and the right-handed adjustment screw drive the corresponding support to move toward the center or away from the center at the same time, and move to the width range required by the magnetic pole core, so as to ensure the centering of the left support and the right support, and to ensure the press-fitting accuracy.

[0022] Furthermore, a guide rod 12 is installed on the fixed beam, and the stacking drive device is a hydraulic cylinder. An anti-rotation disk 11 is fixedly installed on the end of the piston rod of the hydraulic cylinder. The upper part of the anti-rotation disk is fixedly connected to the guide rod. During press fitting, the front mold is fixedly installed on the anti-rotation disk for press fitting, so that the operation process always moves in a straight line to ensure the press fitting accuracy.

[0023] Furthermore, a through hole 16 is opened at the bottom of the base, and an ejector rod 24 is passed through the through hole. An ejector cylinder (not shown) is fixedly installed under the base, and the end of the piston rod of the ejector cylinder is fixedly connected to the ejector rod. After the hydraulic press completes the lamination and pressing of the pole core, the cylinder is actuated, the piston rod is extended, and the ejector rod is lifted to eject the pole core. No manual disassembly is required, and the operation is more time-saving and labor-saving.

[0024] Furthermore, the tailstock is divided into two parts, and two lugs 23 are respectively provided on the upper part of the fixed beam and the movable support beam. Two upper pull rods are respectively provided at the two lugs of the fixed beam and the movable support beam, which can increase the distance between the two upper pull rods and make the upper opening larger for easy operation.

[0025] Furthermore, wheel limiting devices 6 are fixedly installed at both ends of the guide rail to prevent the movable support beam from overmoving.

[0026] When the hydraulic press for laminating the magnetic pole cores of a hydroelectric generator set needs to work, the mold is installed on the mold mounting seat, magnetic pole cores of different specifications are installed on the mold, the rear mold is installed on the movable support beam, and the front mold is installed on the laminating drive device. The movable support beam moves along the guide rail and is limited by the clamping ring installed at the annular positioning groove. The side support adjustment mechanism is adjusted to make the left support and the right support move along the corresponding guide groove at the same time. After the length and width are limited and fixed, the laminating drive device moves for press fitting.

[0027] In summary, the generator pole core lamination hydraulic press protected by the present invention can adapt to the lamination of generator pole cores of different specifications and is easy to adjust, saving time and effort.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic press for laminating magnetic pole cores of generators, characterized in that: The invention comprises a base, a tailstock, a movable support beam with walking wheels, a fixed beam, a side support device and a stacking drive mechanism, wherein the tailstock is fixedly installed at the rear end of the base, the fixed beam is fixedly installed at the front end of the base, two upper pull rods and two lower pull rods are installed between the tailstock and the fixed beam, and a plurality of annular positioning grooves are respectively arranged on the upper pull rods and the lower pull rods, a guide rail is fixedly installed on the base in front of the tailstock, the walking wheels of the movable support beam are clamped on the guide rail, the upper pull rod and the lower pull rod respectively pass through the movable support beam and limit the movable support beam by a clamping ring installed at the annular positioning groove, and the side support The support device includes a left support and a right support, a plurality of left support guide grooves and a right support guide groove are opened on the base between the movable support beam and the fixed beam, a plurality of sliding guide keys corresponding to the support guide grooves are fixedly arranged at the bottom of the left support and the right support, the sliding guide keys are slidably installed in the corresponding guide grooves and locked with the guide grooves by locking bolts, side support adjustment mechanisms are respectively installed at both ends of the base, so that the left support and the right support move along the corresponding guide grooves at the same time, mold mounting seats are respectively fixedly installed on the upper parts of the left support and the right support, and the stacking drive mechanism is fixedly installed on the fixed beam; A guide rod is installed on the fixed beam, and the stacking driving mechanism is a hydraulic cylinder. An anti-rotation plate is fixedly installed on the end of the piston rod of the hydraulic cylinder, and the upper part of the anti-rotation plate is fixedly connected to the guide rod; A through hole is opened at the bottom of the base, an ejector rod is passed through the through hole, an ejector oil cylinder is fixedly installed under the base, and the end of the piston rod of the ejector oil cylinder is fixedly connected to the ejector rod.

2. A generator pole core lamination hydraulic press according to claim 1, characterized in that: The side support adjustment mechanism includes an adjustment screw mounting seat fixedly mounted at the center positions of both ends of the base, a left-hand adjustment screw and a right-hand adjustment screw, a connecting sleeve is installed in the adjustment screw mounting seat through a bearing, the connecting sleeve is provided with a threaded hole, and the threads at both ends of the threaded hole have opposite rotation directions, one end of the left-hand adjustment screw is mounted on the left support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread at this end of the connecting sleeve, and one end of the right-hand adjustment screw is mounted on the right support, and the other end is located in the connecting sleeve and is provided with an external thread corresponding to the internal thread at this end of the connecting sleeve.

3. The generator pole core lamination hydraulic press according to claim 1, characterized in that: The tailstock is divided into two parts, the upper parts of the fixed beam and the movable support beam are respectively provided with two lugs, and the two upper pull rods are respectively arranged at the two lugs of the fixed beam and the movable support beam.

4. The generator pole core lamination hydraulic press according to claim 1, characterized in that: Wheel limiting devices are fixedly installed at both ends of the guide rail.

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