Mounting structure for forming of generator retaining ring

Abstract

The utility model belongs to the technical field of generator retaining ring processing, and particularly relates to a mounting structure for forming a generator retaining ring, which comprises a lower die and a rod core, the rod core is a cylinder, a retaining ring blank is vertically sleeved on the outer wall of the rod core, the top of the lower die is provided with an annular concave lantern ring hole, and the lower die is provided with a lower die. The rod core is vertically fixed in the lantern ring hole, so that an operator can sleeve a retaining ring blank on the rod core without lifting the whole retaining ring blank by forming the lantern ring hole and arranging the rod core in the lower die in a penetrating manner, and then through the arrangement of the clamping ring, when the retaining ring blank enters the lantern ring hole along the rod core, the retaining ring blank can be clamped in the lantern ring hole, so that the retaining ring blank can be clamped in the lantern ring hole. The clamping ring can be closed along the retaining ring blank under the driving of the first air cylinder and the first push rod, so that the clamping ring can clamp the outer wall of the retaining ring blank, the fixing effect on the retaining ring blank is further improved, and the retaining ring blank is not prone to shaking on the lower die.

Description

Technical Field

[0001] The utility model belongs to the technical field of generator guard ring processing, and in particular relates to a mounting structure used for generator guard ring molding. Background Art

[0002] The generator guard ring is an important component of the power station generator rotor. It is a high-strength, non-magnetic, metal ring-shaped component mainly used to prevent the rotor components and the ends of the excitation winding from deformation, displacement and eccentricity under the action of electromagnetic force and high-speed centrifugal force. At present, in the production and processing of the generator guard ring, corresponding molds are needed to form the guard ring. The mold usually uses a water-expansion internal high-pressure mold. The purpose of expansion molding is achieved by injecting liquid into the guard ring blank and then sealing the guard ring blank through the mold punch, so that the liquid in the guard ring blank becomes a high-pressure liquid.

[0003] In the prior art, the water expansion mold is usually divided into an upper mold and a lower mold. When the guard ring needs to be expanded, the guard ring blank needs to be installed and fixed on the lower mold first. Usually, a cylindrical rod core is provided on the lower mold. The guard ring blank is fixed by sleeved one end of the guard ring blank on the rod core. However, when the above method is actually used, the rod core is usually vertically fixed on the top of the lower mold, resulting in the operator having to lift the entire blank over the rod core to smoothly sleeve the blank on the rod core when fixing the guard ring blank. As the number of formed blanks increases, it is very easy to cause fatigue to the operator, which is not conducive to the use of the device. Utility Model Content

[0004] In view of this, the utility model provides an installation structure for generator guard ring forming, the purpose of which is to open a ring hole and pass the rod core through the interior of the lower mold, so that the operator can put the guard ring blank on the rod core without lifting the entire guard ring blank, and then through the setting of the clamping ring, when the guard ring blank enters the ring hole along the rod core, the clamping ring can be closed along the guard ring blank under the drive of the first cylinder and the first push rod, so that the clamping ring can be clamped on the outer wall of the guard ring blank, further improving the fixing effect of the guard ring blank, so that the guard ring blank is not easy to shake on the lower mold.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A mounting structure for forming a generator guard ring comprises a lower mold and a rod core, the rod core is a cylinder, and a guard ring blank is vertically sleeved on the outer wall of the rod core, a ring hole in the shape of an annular depression is opened on the top of the lower mold, and the rod core is vertically fixed in the ring hole, a clamping ring which can be split into two half rings is arranged in the ring hole, and the openings of the two half rings are arranged in parallel in the ring hole with the rod core as the center, a first cylinder is arranged inside the ring hole, and a first push rod is arranged on the side of the first cylinder facing the half ring, and the first push rod is connected to the side of the half ring away from the opening.

[0007] As a preferred technical solution, the clamp ring fits against the inner wall of the collar hole, and the vertical heights of the clamp ring, the rod core and the collar hole are all the same.

[0008] Furthermore, the first push rod is movably arranged on the inner wall of the collar hole.

[0009] Furthermore, a plurality of receiving grooves are provided on the rod body at the bottom end of the rod core, wherein the plurality of receiving grooves are arranged in sections along a circumference on the rod body of the rod core.

[0010] Furthermore, a snap ring is provided inside the receiving groove, and the snap ring is movably fitted inside the receiving groove, wherein the cross-sectional thickness of the snap ring is consistent with the opening height of the receiving groove.

[0011] Furthermore, the rod core is provided with a second cylinder inside one end of a receiving groove, and the second cylinder is located at the center points of several receiving grooves, wherein the second cylinder is provided with a second push rod corresponding to the clamping ring in the receiving groove; the ring hole is provided with a clamping ring which can be split into two half rings, and the openings of the two half rings are arranged in parallel in the ring hole with the rod core as the center, the ring hole is provided with a first cylinder, and the first push rod is provided on the side of the first cylinder facing the half ring, and the first push rod is connected to the side of the half ring away from the opening.

[0012] Furthermore, the first cylinder and the second cylinder are both controlled by an external driver, and the external driver includes a solenoid valve.

[0013] Furthermore, the inner wall of the retaining ring blank does not contact the rod body of the rod core.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] By opening a sleeve ring hole and passing the rod core through the interior of the lower mold, the operator can put the sleeve ring blank on the rod core without lifting the entire sleeve ring blank. Subsequently, by setting the clamp ring, when the sleeve ring blank enters the sleeve ring hole along the rod core, the clamp ring can be closed along the sleeve ring blank under the drive of the first cylinder and the first push rod, so that the clamp ring can be clamped on the outer wall of the sleeve ring blank, further improving the fixing effect of the sleeve ring blank and making it less likely for the sleeve ring blank to shake on the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a mounting structure for generator guard ring molding provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the unfolding effect of the clamp ring provided by the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the collar hole provided by the utility model;

[0020] Figure 4 The utility model provides Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 It is a schematic diagram of the top structure of the rod core provided by the utility model.

[0022] Lower mold-1; collar hole-2; clamp ring-3; guard ring blank-4; rod core-5; first cylinder-6; first push rod-7; clamp ring-8; second push rod-9; second cylinder-10; receiving groove-11. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: In the prior art, the water expansion mold is usually divided into an upper and lower mold. When the retaining ring needs to be expanded, it is usually necessary to fix the retaining ring blank on the lower mold first. The lower mold is usually equipped with a cylindrical rod core, which is used to put one end of the retaining ring blank on it and fix it. However, there is a problem with the existing method: the rod core is usually fixed vertically on the top of the lower mold, which means that the operator must lift the entire blank over the rod core when fixing the retaining ring blank, so that the blank can be successfully put on the rod core. As the number of blanks to be formed increases, this operation is likely to cause fatigue to the operator, which is not conducive to the use of the device.

[0025] Therefore, in order to solve the problem that the existing rod core is usually fixed vertically on the top of the lower mold, the operator must lift the entire blank over the rod core when fixing the retaining ring blank in order to smoothly put the blank on the rod core, which is very easy to cause operator fatigue as the number of formed and processed blanks increases, the function of saving the operator's physical strength and improving the convenience of retaining ring blank installation is realized. The utility model discloses an installation structure for generator retaining ring molding, referring to Figure 1-Figure 3 , comprising a lower mold 1 and a rod core 5, the rod core 5 is a cylinder, and a guard ring blank 4 is vertically sleeved on the outer wall of the rod core 5, a ring hole 2 in the shape of an annular depression is opened on the top of the lower mold 1, and the rod core 5 is vertically fixed in the ring hole 2, a clamping ring 3 which can be split into two half rings is arranged in the ring hole 2, and the openings of the two half rings are arranged in parallel in the ring hole 2 with the rod core 5 as the center, a first cylinder 6 is arranged inside the ring hole 2, and a first push rod 7 is arranged on the side of the first cylinder 6 facing the half ring, and the first push rod 7 is connected to the side of the half ring away from the opening;

[0026] Working principle: By opening the ring hole 2, the rod core 5 is inserted into the interior of the lower mold 1, so that the operator can put the guard ring blank 4 on the rod core 5 without lifting the entire guard ring blank 4, and then through the setting of the clamping ring 3, when the guard ring blank 4 enters the ring hole 2 along the rod core 5, the clamping ring 3 can be closed along the guard ring blank 4 under the drive of the first cylinder 6 and the first push rod 7, so that the clamping ring 3 can be clamped on the outer wall of the guard ring blank 4, further improving the fixing effect of the guard ring blank 4, so that the guard ring blank 4 is not easy to shake on the lower mold 1.

[0027] When in use: in the initial state, the two half rings of the clamping ring 3 fit with the inner wall of the ring hole 2, the operator first places the guard ring blank 4 vertically on the top of the lower mold 1, and then pushes the guard ring blank 4 horizontally to the top of the ring hole 2, so that the opening at the bottom of the guard ring blank 4 can be directly sleeved on the rod core 5 in the ring hole 2, or lift the guard ring blank 4 normally, place the guard ring blank 4 on the top of the ring hole 2, and then adjust the position angle of the guard ring blank 4 so that the rod core 5 can smoothly pass through the guard ring blank 4. When the guard ring blank 4 slides into the inside of the ring hole 2 along the rod core 5, the operator can open the external solenoid valve so that the first cylinder 6 can push out the first push rod 7, so that the clamping ring 3 composed of the two half rings can be clamped on the guard ring blank 4 to play a role in fixed installation.

[0028] In this embodiment, preferably, the clamping ring 3 is in contact with the inner wall of the ring hole 2, and the vertical heights of the clamping ring 3, the rod core 5 and the ring hole 2 are all the same. Through the above arrangement, when the retaining ring blank 4 is pushed on the surface of the ring hole 2, the opening at the bottom of the retaining ring blank 4 will slide into the ring hole 2 at the moment it overlaps with the rod core 5.

[0029] In this embodiment, the first push rod 7 is movably arranged on the inner wall of the ring hole 2. When the first cylinder 6 is started by the solenoid valve, the first push rod 7 can extend from the first cylinder 6 and push the clamping ring 3, so that the clamping ring 3 can clamp the retaining ring blank 4. Then, when the retaining ring blank 4 is processed, the solenoid valve is closed, and the first push rod 7 can be retracted into the inner wall of the ring hole 2.

[0030] In this embodiment, the retaining ring blank 4 is a straight thin-walled circular tube.

[0031] Embodiment 2: Based on Embodiment 1, in the prior art, when the rod core 5 and the retaining ring blank 4 are sleeved, the outer wall of the rod core 5 will fit with the inner wall of the retaining ring blank 4. After the retaining ring blank 4 is expanded, there is a risk of being stuck on the rod core 5, resulting in the formation of the retaining ring blank 4. After being taken out, the rod core 5 will be wired. Therefore, in order to solve the above problem and achieve the function of reducing the wire drawing rate of the finished retaining ring, refer to Figure 3-Figure 5The utility model also discloses an installation structure for forming a generator guard ring, including a furnace body 6, a furnace 7, and a graphite boat plate 1 and a graphite boat dish 10 contained in the furnace 7. Specifically, the rod core 5 is provided with a second cylinder 10 at one end of the receiving groove 11, and the second cylinder 10 is located at the center point of a plurality of receiving grooves 11, wherein the second cylinder 10 is provided with a second push rod 9 corresponding to the clamping ring 8 in the receiving groove 11; the sleeve ring hole 2 is provided with a clamping ring 3 which can be split into two half rings, and the openings of the two half rings are parallelly arranged in the sleeve ring hole 2 with the rod core 5 as the center, the sleeve ring hole 2 is provided with a first cylinder 6, and the first cylinder 6 is provided with a first push rod 7 on the side facing the half ring, and the first push rod 7 is connected to the side of the half ring away from the opening.

[0032] Working principle: By reducing the width of the rod core 5, the retaining ring blank 4 will not fit with the outer wall of the rod core 5 when it is sleeved with the rod core 5, and then the retaining ring 8 can be pressed against the inner wall of the retaining ring blank 4 through the second cylinder 10 to play a supporting role. Through the above method, the rod core 5 and the retaining ring blank 4 are changed from completely fitting to intermittently fitting, thereby reducing the contact area between the rod core 5 and the retaining ring blank 4, so that the retaining ring blank 4 is not easily stuck on the rod core 5. Then, when the retaining ring blank 4 needs to be removed, the retaining ring 8 will retract into the rod core 5 and actively disconnect from the retaining ring blank 4, so that the operator can smoothly remove the retaining ring blank 4, further reducing the drawing rate of the finished retaining ring.

[0033] During use: In the initial state, the retaining ring 8 is retracted in the receiving groove 11. When the retaining ring blank 4 passes through the rod core 5 and enters the ring hole 2, the operator can open the second cylinder 10, so that the second push rod 9 can push the retaining ring 8 out of the rod core 5 under the drive of the second cylinder 10. Then the retaining ring 8 can be annular and sectioned against the inner wall of the retaining ring blank 4, which plays the role of fixing the retaining ring blank 4 from the inside. Then, when the retaining ring blank 4 needs to be taken out, the operator only needs to close the second cylinder 10 so that the second push rod 9 and the retaining ring 8 can be reset, and then the operator can directly extract the retaining ring blank 4.

[0034] In this embodiment, by providing the snap ring 8 and the clamp ring 3 , the lower mold 1 can fix the guard ring blank 4 from both the inner and outer directions, further improving the stability of the guard ring blank 4 .

[0035] In this embodiment, a plurality of receiving grooves 11 are provided on the rod body at the bottom end of the rod core 5 , wherein the plurality of receiving grooves 11 are arranged in sections along the circumference of the rod body of the rod core 5 .

[0036] In the present embodiment, a snap ring 8 is provided inside the receiving groove 11, and the snap ring 8 is movably fitted inside the receiving groove 11, wherein the cross-sectional thickness of the snap ring 8 is consistent with the opening height of the receiving groove 11. Through the above structure, the snap ring 8 can be completely filled inside the receiving groove 11. When the snap ring 8 is in the receiving state, it helps to avoid the shaking of the snap ring 8 inside the receiving groove 11.

[0037] In the above embodiment, preferably, the inner wall of the retaining ring blank 4 and the rod body of the rod core 5 do not contact each other, thereby reducing the probability of the retaining ring blank 4 being stuck on the rod core 5, which helps to improve the efficiency of taking the finished retaining ring and the qualified rate of the finished product.

[0038] In the above embodiment, the first cylinder 6 and the second cylinder 10 are both controlled by an external driver, and the external driver includes a solenoid valve, but is not limited thereto.

[0039] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mounting structure for forming a generator retaining ring, comprising a lower mold (1) and a rod core (5), wherein the rod core (5) is a cylinder, and a retaining ring blank (4) is vertically sleeved on the outer wall of the rod core (5), characterized in that: The top of the lower mold (1) is provided with a ring hole (2) in the shape of an annular depression, and the rod core (5) is vertically fixed in the ring hole (2). The ring hole (2) is provided with a clamping ring (3) which can be split into two half rings, and the openings of the two half rings are arranged in parallel in the ring hole (2) with the rod core (5) as the center. The inside of the ring hole (2) is provided with a first cylinder (6), and a first push rod (7) is provided on the side of the first cylinder (6) facing the half ring, and the first push rod (7) is connected to the side of the half ring away from the opening.

2. The mounting structure for generator guard ring molding according to claim 1, characterized in that: The clamping ring (3) fits in with the inner wall of the collar hole (2), and the vertical heights of the clamping ring (3), the rod core (5) and the collar hole (2) are all the same.

3. The mounting structure for generator guard ring molding according to claim 1, characterized in that: The first push rod (7) is movably arranged on the inner wall of the collar hole (2).

4. The mounting structure for generator retaining ring molding according to claim 1, characterized in that: A plurality of receiving grooves (11) are provided on the rod body at the bottom end of the rod core (5), wherein the plurality of receiving grooves (11) are arranged in a circular section on the rod body of the rod core (5).

5. The mounting structure for generator guard ring molding according to claim 4, characterized in that: A snap ring (8) is provided inside the receiving groove (11), and the snap ring (8) is movably fitted inside the receiving groove (11), wherein the cross-sectional thickness of the snap ring (8) is consistent with the opening height of the receiving groove (11).

6. The mounting structure for generator guard ring molding according to claim 4, characterized in that: The rod core (5) is provided with a second cylinder (10) at one end thereof having a receiving groove (11), and the second cylinder (10) is located at the center point of a plurality of receiving grooves (11), wherein the second cylinder (10) is provided with a second push rod (9) corresponding to a clamping ring (8) in the receiving groove (11); a clamping ring (3) which can be split into two half rings is provided in the collar hole (2), and the openings of the two half rings are arranged in parallel in the collar hole (2) with the rod core (5) as the center; a first cylinder (6) is provided in the collar hole (2), and a first push rod (7) is provided on the side of the first cylinder (6) facing the half ring, and the first push rod (7) is connected to the side of the half ring away from the opening.

7. The mounting structure for generator guard ring molding according to claim 6, characterized in that: The first cylinder (6) and the second cylinder (10) are both controlled by an external driver, and the external driver comprises a solenoid valve.

8. The mounting structure for generator guard ring molding according to claim 1, characterized in that: The inner wall of the retaining ring blank (4) and the rod body of the rod core (5) do not contact each other.

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