A fixture for assembling a generator

Abstract

The present invention relates to the technical field of assembly fixtures, and specifically to a fixture for assembling a generator, comprising a suspension rod, a pull plate and a plurality of lifting assemblies. The pull plate can be slidably mounted on the suspension rod, and the lifting assembly comprises a support arm, an upper connecting rod and a lower connecting rod. The support arm comprises a first support rod and a second support rod, and the first support rod and the second support rod are connected by a first elastic member. The lower connecting rod comprises a third support rod and a fourth support rod, and the third support rod and the fourth support rod are connected by a second elastic member. A fixture for assembling a generator of the present invention cooperates by setting a suspension rod, a pull plate and a plurality of lifting assemblies, and adjusts the angle between the lower connecting rod and the suspension rod by the gravity of the stator core, while ensuring that the suspension rod can lift the stator core, reducing the proportion of the positive pressure of the support arm on the stator core, and preventing the stator core from being damaged by excessive positive pressure of the lower connecting rod on the stator core.

Description

Technical Field

[0001] The invention relates to the technical field of assembly fixtures, and in particular to a generator assembly fixture. Background Art

[0002] The assembly process of the generator mainly includes: the assembly of the inner and outer shells, the assembly of the stator, the assembly of the rotor and the assembly of electronic components. The assembly of the stator is one of the important links in the assembly of the generator. The stator is the stationary part of the motor, mainly composed of three parts: the stator core, the stator winding and the frame. After the stator core is manufactured, it needs to be transferred to the assembly line for assembly. The traditional transfer method is manual transfer, which has high labor intensity and low turnover efficiency.

[0003] Chinese patent CN221191282U discloses an internal support type sling which is equipped with a lifting ring, a suspension rod and three support arms. The three support arms of the sling will automatically pop open and contact the inner wall of the workpiece by their own gravity. The crane pulls the lifting ring. During the lifting process, the force is converted into support force and friction force. The tighter the support is, the motor stator core can be automatically lifted. It is easy to use and can effectively improve work efficiency. However, when this solution is used, the angle between the stressed support rod and the suspension rod is not controlled. If the angle is too large, the positive pressure between the stressed support rod and the workpiece will account for a large proportion when the stressed support rod applies force to the support arm. Excessive positive pressure may cause excessive external support of the stator core, causing damage to the stator core. Summary of the invention

[0004] The present invention provides a generator assembly fixture to solve the problem that when the existing generator assembly fixture is in use, the angle between the load-bearing support rod and the suspension rod is not controlled. If the angle is too large, when the load-bearing support rod applies force to the support arm, the positive pressure between the load-bearing support rod and the workpiece accounts for a large proportion, and the excessive positive pressure may cause the stator core to be over-supported, resulting in damage to the stator core.

[0005] A fixture for assembling a generator of the present invention adopts the following technical solution: a fixture for assembling a generator, comprising a suspension rod, a pulling plate and a plurality of lifting components; the suspension rod is arranged along a first direction, the first direction is a vertical direction, and a base is arranged at one end of the suspension rod; the pulling plate can be slidably installed on the suspension rod along the first direction; a plurality of lifting components are evenly distributed around the first direction on the suspension rod; the lifting component comprises a support arm, an upper connecting rod and a lower connecting rod, the support arm is arranged along the first direction, the support arm comprises a first support rod and a second support rod, the first support rod and the second support rod are connected by a first elastic member, and the first support rod and the pulling plate are sequentially arranged in the first direction. It is arranged that the upper connecting rod is rotatably connected between the first support rod and the pulling plate; and when the suspension rod moves along the first direction, the pulling plate and the first support rod can move synchronously with the suspension rod; the lower connecting rod includes a third support rod and a fourth support rod, the third support rod is rotatably connected to the second support rod, the fourth support rod is rotatably connected to the suspension rod, the third support rod and the fourth support rod are connected by a second elastic member, the first elastic member and the second elastic member are connected by a connecting mechanism, and the stretching of the first elastic member can prompt the connecting mechanism to operate, the operation of the connecting mechanism can compress the second elastic member, and make the deformation amount of the first elastic member positively correlated with the deformation amount of the second elastic member.

[0006] Furthermore, the connecting mechanism includes a first sliding rod, a first chamber, an adjusting chamber, a sliding chamber and a sliding plate; the first sliding rod is arranged on the first support rod, the first chamber is opened on the second support rod, and the first chamber is filled with hydraulic oil; and the first sliding rod is sleeved in the first chamber, and the first sliding rod is slidingly sealed with the inner wall of the first chamber; when the first elastic member is stretched, the hydraulic oil in the first chamber will be compressed; the adjusting chamber and the sliding chamber are both opened in the third support rod, the sliding plate is arranged in the adjusting chamber, and the sliding plate is slidingly sealed with the inner wall of the adjusting chamber; a second chamber is defined between the sliding plate and the adjusting chamber, and the second chamber is connected to the first chamber; the second elastic member is located in the adjusting chamber and is installed between the sliding plate and the fourth support rod; the fourth support rod passes through the adjusting chamber and is slidably installed in the sliding chamber.

[0007] Furthermore, a first tooth plate is arranged on the peripheral wall surface of the suspension rod, and the first tooth plate is an arc-shaped plate. The first tooth plate is arranged along the first direction, and the teeth on the first tooth plate are ratchet teeth. The first tooth plate can be extended and retracted along the second direction on the suspension rod, and the second direction is the radial direction of the suspension rod; a second tooth plate is arranged on the inner wall surface of the pulling plate, and the second tooth plate is arranged along the first direction, and the teeth on the second tooth plate are ratchet teeth. When the first tooth plate extends out of the suspension rod, the first tooth plate can engage with the second tooth plate. The unidirectional movement of the first tooth plate in the first direction can drive the second tooth plate to move. When the first tooth plate is retracted into the suspension rod along the second direction, the pulling plate and the suspension rod can move relative to each other in the first direction.

[0008] Furthermore, a plurality of hinge shafts are evenly distributed on the pull plate around a first direction, the hinge shafts are fixedly mounted on the pull plate, a plurality of upper connecting rods are provided with rotation grooves, the plurality of rotation grooves are arranged one-to-one with the plurality of hinge shafts, the hinge shafts are perpendicular to the upper connecting rods arranged correspondingly thereto, the rotation grooves on the upper connecting rods are rotationally matched with the hinge shafts arranged correspondingly thereto; a first tooth segment is arranged on the inner circumferential wall surface of the rotation groove; the first tooth segment includes a plurality of first ratchet teeth evenly distributed around the axial direction of the hinge shaft, a second ratchet tooth for matching with the first ratchet tooth is arranged around the axial direction of the hinge shaft, the second ratchet tooth is a telescopic tooth, and the second ratchet tooth can slide on the hinge shaft along the axial direction of the hinge shaft.

[0009] Furthermore, the support arm also includes a lifting plate, which is fixedly mounted on the second support rod and is located on a side of the second support rod away from the suspension rod in the second direction.

[0010] Furthermore, a plurality of first through holes are provided on the lifting plate, a plurality of second through holes for cooperating with the plurality of first through holes are provided on the second support rod, and the first through holes are fixedly connected to the corresponding second through holes by screws.

[0011] Furthermore, the second chamber is communicated with the first chamber through a connecting pipe.

[0012] Furthermore, a lifting ring is provided at one end of the suspension rod away from the base in the first direction.

[0013] Furthermore, two lifting rings are provided on a side of the pull plate away from the base in the first direction; when in use, the lifting rings are pulled to drive the pull plate to move.

[0014] Furthermore, the number of lifting components is three.

[0015] The beneficial effects of the present invention are as follows: a fixture for assembling a generator of the present invention cooperates by setting a suspension rod, a pulling plate and multiple lifting components, and the support arm of the lifting component is set to be connected to the first support rod and the second support rod, and the lower connecting rod is set to be connected to the third support rod and the fourth support rod, so that the gravity of the stator core is positively correlated with the deformation degree of the first elastic member, and the angle between the lower connecting rod and the suspension rod is adjusted by the gravity of the stator core. While ensuring that the suspension rod can lift the stator core, the proportion of the positive pressure of the support arm on the stator core is reduced, thereby preventing the stator core from being damaged due to excessive positive pressure of the lower connecting rod on the stator core. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the overall structure of an embodiment of a fixture for assembling a generator according to the present invention;

[0018] Figure 2 A front view of the overall structure of an embodiment of a fixture for assembling a generator according to the present invention;

[0019] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0020] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0022] Figure 6 A structural diagram of a rotation groove and a hinge shaft of an upper connecting rod of an embodiment of a fixture for assembling a generator according to the present invention;

[0023] Figure 7 This is a force analysis diagram of a support arm of an embodiment of a fixture for assembling a generator according to the present invention.

[0024] In the figure: 100, lifting rod; 110, base; 120, lifting ring; 200, pulling plate; 201, hinge shaft; 202, second ratchet; 210, lifting ring; 300, lifting assembly; 310, supporting arm; 311, first support rod; 312, second support rod; 313, first elastic member; 314, first sliding rod; 315, first chamber; 316, adjusting chamber; 317, sliding chamber; 318, sliding plate; 319, second chamber; 320, upper connecting rod; 321, rotating groove; 322, first ratchet; 330, lower connecting rod; 331, third support rod; 332, fourth support rod; 333, second elastic member; 340, lifting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0026] An embodiment of a fixture for assembling a generator according to the present invention is as follows: Figures 1 to 7 shown.

[0027] A fixture for assembling a generator includes a suspension rod 100, a pull plate 200, and a plurality of lifting assemblies 300. The suspension rod 100 is arranged along a first direction, which is a vertical direction, and a base 110 is arranged at one end of the suspension rod 100. The pull plate 200 can be slidably mounted on the suspension rod 100 along the first direction. The plurality of lifting assemblies 300 are evenly distributed on the suspension rod 100 around the first direction.

[0028] The lifting assembly 300 includes a support arm 310, an upper connecting rod 320 and a lower connecting rod 330. The support arm 310 is arranged along the first direction. The support arm 310 includes a first support rod 311 and a second support rod 312. The first support rod 311 and the second support rod 312 are connected by a first elastic member 313. The first support rod 311 and the pull plate 200 are arranged in sequence in the first direction. The upper connecting rod 320 is rotatably connected between the first support rod 311 and the pull plate 200. When the suspension rod 100 moves along the first direction, the pull plate 200 and the first support rod 311 can move synchronously with the suspension rod 100.

[0029] The lower connecting rod 330 includes a third strut 331 and a fourth strut 332. The third strut 331 is rotatably connected to the second strut 312. The fourth strut 332 is rotatably connected to the suspension rod 100. The third strut 331 and the fourth strut 332 are connected via a second elastic member 333. The first elastic member 313 and the second elastic member 333 are connected via a connecting mechanism. The stretching of the first elastic member 313 can prompt the connecting mechanism to operate. The operation of the connecting mechanism can compress the second elastic member 333 and make the deformation of the first elastic member 313 positively correlated with the deformation of the second elastic member 333.

[0030] Specifically, three lifting assemblies 300 are provided.

[0031] Further, two lifting rings 210 are provided on one side of the pull plate 200 away from the base 110 in the first direction. When in use, the lifting rings 210 are pulled to move the pull plate 200.

[0032] Furthermore, a lifting ring 120 is provided at one end of the suspension rod 100 away from the base 110 in the first direction. When in use, the suspension rod 100 is pulled to move by the lifting ring 120.

[0033] In this embodiment, the suspension rod 100, the pull plate 200 and the plurality of lifting assemblies 300 are arranged to cooperate, and the support arm 310 of the lifting assembly 300 is arranged to be connected to the first support rod 311 and the second support rod 312, and the lower connecting rod 330 is arranged to be connected to the third support rod 331 and the fourth support rod 332. When in use, the stator core to be lifted is placed on the external transfer table surface, and the pull plate 200 is first moved relative to the suspension rod 100 along the first direction to the side away from the base 110. The movement of the pull plate 200 will pull the support arm 310 to move to the side close to the suspension rod 100 through the upper connecting rod 320, and cause the lower connecting rod 330 to rotate to the side close to the suspension rod 100. At this time, the plurality of support arms 310 are tightened to the side close to the suspension rod 100. Then the generator assembly fixture is placed as a whole in the stator core to be moved, and the base 110 is brought into contact with the transfer table surface.

[0034] Then release the pull plate 200, and the pull plate 200 will move relative to the suspension rod 100 along the first direction toward the side close to the base 110, and prompt the support arm 310 to move toward the side away from the suspension rod 100 through the upper connecting rod 320, and further prompt the lower connecting rod 330 to rotate toward the side away from the suspension rod 100. At this time, multiple support arms 310 open toward the side away from the suspension rod 100 and abut against the inner wall of the stator core.

[0035] Then pull the suspension rod 100 upward, refer to the attached Figure 3 The movement of the suspension rod 100 will drive the pull plate 200 and the upper connecting rod 320 to move synchronously, stretching the first elastic member 313 between the first support rod 311 and the second support rod 312. The support arm 310 will be subjected to the pulling force of the first elastic member 313 upward in the first direction, which is referred to as , ,in, represents the stiffness coefficient of the first elastic member 313, represents the deformation amount of the first elastic member 313 .

[0036] When the suspension rod 100 moves, the support arm 310 abuts against the inner side wall of the stator core and does not move. Therefore, as the suspension rod 100 moves, the angle between the lower connecting rod 330 and the suspension rod 100 will increase, and the length of the lower connecting rod 330 will decrease, that is, the second elastic member 333 between the third support rod 331 and the fourth support rod 332 will be compressed. The first elastic member 313 and the second elastic member 333 can play a buffering role when the generator assembly fixture is placed.

[0037] The force exerted by the second elastic member 333 on the support arm 310 is decomposed, and the component force of the second elastic member 333 in the vertical direction is referred to as , ,in, represents the stiffness coefficient of the second elastic member 333, represents the deformation amount of the second elastic member 333, is the angle between the lower connecting rod 330 and the horizontal direction. The component force of the second elastic member 333 in the horizontal direction is called , . is the positive pressure of the support arm 310 on the stator core.

[0038] The weight of the stator core is called Since the stator core remains stationary at this time, the friction force of the stator core on the support arm 310 is . The three forces are balanced in the vertical direction. .

[0039] At this time, the suspension rod 100 can drive the stator core to move through the support arm 310, so for the stator core, μ As the lower connecting rod 330 rotates, the angle between the lower connecting rod 330 and the suspension rod 100 will gradually increase, the vertical force component of the second elastic member 333 will gradually decrease, and the horizontal force component of the second elastic member 333 will gradually increase. The vertical force component of the second elastic member 333 can be ignored. Then it can be obtained. ,and μ When the suspension rod 100 drives the pull plate 200 and the upper connecting rod 320 to move synchronously and stretches the first elastic member 313 between the first support rod 311 and the second support rod 312, the first elastic member 313 will be stretched under the gravity of the workpiece, and the greater the gravity of the workpiece, the greater the stretching amount of the first elastic member 313.

[0040] That is, the gravity of the stator core is positively correlated with the degree of deformation of the first elastic member 313. The stretching of the first elastic member 313 will prompt the connecting mechanism to operate, and through the connecting mechanism, the second elastic member 333 will be deformed, thereby increasing the component force of the second elastic member 333 in the horizontal direction, and thus increasing the horizontal support force. That is, the greater the deformation of the first elastic member 313, the greater the deformation of the second elastic member 333 caused by the connecting mechanism. When the second elastic member 333 is compressed to the limit position, the second elastic member 333 cannot continue to be compressed. At this time, the length between the third support rod and the fourth support rod remains constant, that is, the length of the lower connecting rod 330 remains constant. The angle between the lower connecting rod 330 and the suspension rod 100 cannot continue to change. That is, this embodiment adjusts the angle between the lower connecting rod 330 and the suspension rod 100 through the gravity of the stator core, while ensuring that the suspension rod 100 can lift the stator core, while reducing the positive pressure of the support arm 310 on the stator core. The proportion of the lower connecting rod 330 is prevented from exerting excessive positive pressure on the stator core.

[0041] In this embodiment, the connection mechanism includes a first slide bar 314, a first chamber 315, an adjustment chamber 316, a sliding chamber 317 and a sliding plate 318. The first slide bar 314 is disposed on the first support bar 311, the first chamber 315 is disposed on the second support bar 312, and the first chamber 315 is filled with hydraulic oil. The first slide bar 314 is sleeved in the first chamber 315, and the first slide bar 314 and the inner wall of the first chamber 315 are slidably sealed. When the first elastic member 313 is stretched, the hydraulic oil in the first chamber 315 will be compressed.

[0042] The adjusting chamber 316 and the sliding chamber 317 are both provided in the third support rod 331, and the sliding plate 318 is provided in the adjusting chamber 316, and the sliding plate 318 and the inner wall of the adjusting chamber 316 are slidably sealed. A second chamber 319 is defined between the sliding plate 318 and the adjusting chamber 316, and the second chamber 319 is connected to the first chamber 315 through a connecting pipe. The second elastic member 333 is located in the adjusting chamber 316 and is installed between the sliding plate 318 and the fourth support rod 332. The fourth support rod 332 passes through the adjusting chamber 316 and is slidably installed in the sliding chamber 317.

[0043] In this embodiment, the first slide bar 314, the first chamber 315, the adjustment chamber 316, the sliding chamber 317 and the sliding plate 318 are arranged in coordination. When the suspension rod 100 pulls the first support rod 311 to move and stretches the first elastic member 313, the first slide bar 314 on the first support rod 311 will slide in the first chamber 315 of the second support rod 312, so that the hydraulic oil in the first chamber 315 enters the second chamber 319 from the connecting pipe. On the basis that the lower connecting rod 330 rotates relative to the suspension rod 100 to compress the second elastic member 333 between the third support rod 331 and the fourth support rod 332, the hydraulic oil entering the second chamber 319 from the first chamber 315 will cause the sliding plate 318 to slide. The sliding of the sliding plate 318 will further compress the second elastic member 333, increase the component force of the second elastic member 333 in the horizontal direction, and control the angle between the lower connecting rod 330 and the suspension rod 100, thereby avoiding excessive rotation of the lower connecting rod 330 relative to the suspension rod 100 and reducing the proportion of the positive pressure of the support arm 310 on the stator core.

[0044] In this embodiment, the support arm 310 also includes a lifting plate 340, which is fixedly mounted on the second support rod 312 and is located on the side of the second support rod 312 away from the suspension rod 100 in the second direction. The lifting plate 340 is used to be tightly attached to the inner wall of the stator core. The lifting plate 340 is made of rubber, specifically polyurethane rubber.

[0045] The lifting plate 340 is provided with a plurality of first through holes, and the second support rod 312 is provided with a plurality of second through holes for cooperating with the plurality of first through holes. The first through holes are fixedly connected with the corresponding second through holes by screws.

[0046] In this embodiment, a first tooth plate is provided on the peripheral wall surface of the suspension rod 100. The first tooth plate is an arc-shaped plate, which is arranged along the first direction. The teeth on the first tooth plate are ratchets. The first tooth plate can be extended and retracted on the suspension rod 100 along the second direction. The second direction is the radial direction of the suspension rod 100. A second tooth plate is provided on the inner wall surface of the pull plate 200. The second tooth plate is an arc-shaped plate, which is arranged along the first direction. The teeth on the second tooth plate are ratchets. When the first tooth plate extends out of the suspension rod 100, the first tooth plate can mesh with the second tooth plate. The unidirectional upward movement of the first tooth plate in the first direction can drive the second tooth plate to move, that is, the suspension rod 100 can drive the pull plate 200 to move upward in the first direction. Figure 3 When the first tooth plate is retracted into the suspension rod 100 along the second direction, the pull plate 200 and the suspension rod 100 can move relative to each other in the first direction.

[0047] Specifically, a telescopic groove is provided on the suspension rod 100, and the first tooth plate is installed in the telescopic groove through a third elastic member. The third elastic member always has a tendency to cause the first tooth plate to move along the second direction toward the side close to the second tooth plate, so that the first tooth plate can be engaged with the second tooth plate in a natural state. An unlocking button is fixedly provided on the first tooth plate. When the first tooth plate needs to be disengaged from the second tooth plate, the unlocking button is manually pressed to compress the third elastic member, thereby driving the first tooth plate to retract into the telescopic groove. At this time, the pull plate 200 can move in the first direction relative to the suspension rod 100.

[0048] In this embodiment, a plurality of hinge shafts 201 are evenly distributed on the pull plate 200 around a first direction, and the hinge shafts 201 are fixedly mounted on the pull plate 200. A plurality of upper connecting rods 320 are each provided with a rotation groove 321, and the plurality of rotation grooves 321 are arranged one by one corresponding to the plurality of hinge shafts 201. The hinge shafts 201 are perpendicular to the corresponding upper connecting rods 320, and the rotation grooves 321 on the upper connecting rods 320 are rotationally matched with the corresponding hinge shafts 201.

[0049] A first tooth segment is arranged on the inner peripheral wall surface of the rotation groove 321, and the first tooth segment includes a plurality of first ratchet teeth 322 evenly distributed around the axial direction of the hinge shaft 201. A second ratchet tooth 202 for cooperating with the first ratchet teeth 322 is arranged in the circumferential direction of the hinge shaft 201, and the second ratchet tooth 202 is a telescopic tooth, and the second ratchet tooth 202 can slide on the hinge shaft 201 along the axial direction of the hinge shaft 201.

[0050] Specifically, a sliding groove and a through hole are provided on the hinge shaft 201, and both the sliding groove and the through hole are arranged along the axis direction of the hinge shaft 201, and the sliding groove is connected with the through hole, a push rod is slidably installed in the through hole, and the push rod extends out of the hinge shaft 201 along the axis direction of the hinge shaft 201, and the second ratchet 202 is slidably installed in the sliding groove, and the second ratchet 202 is fixedly connected to the push rod. When in use, the push rod can be manually pushed or pulled to slide in the through hole, and the sliding of the push rod will drive the second ratchet 202 to move in the sliding groove, thereby realizing the engagement or disengagement of the second ratchet 202 with the first ratchet 322.

[0051] When the first ratchet teeth 322 are meshed with the second ratchet teeth 202, if the rotation slot 321 of the upper connecting rod 320 rotates clockwise relative to the hinge shaft 201 around the axis of the hinge shaft 201, Figure 6 As shown in the clockwise direction, when the first ratchet tooth 322 passes the second ratchet tooth 202, the second ratchet tooth 202 will retract under the action of the first ratchet tooth 322. That is, the upper link 320 is allowed to rotate around the axis of the hinge shaft 201 to the side away from the boom 100. If the rotation slot 321 of the upper link 320 rotates counterclockwise relative to the hinge shaft 201 around the axis of the hinge shaft 201, refer to the attached Figure 6 As shown in the counterclockwise direction, the second ratchet 202 blocks the first ratchet 322 to limit the rotation of the first ratchet 322 , that is, the upper connecting rod 320 is limited to rotate around the axis direction of the hinge shaft 201 toward the side close to the suspension rod 100 .

[0052] When the second ratchet tooth 202 slides on the hinge shaft 201 along the axial direction of the hinge shaft 201 so that the first tooth segment and the second ratchet tooth 202 are misaligned in the axial direction of the hinge shaft 201, the first ratchet tooth 322 and the second ratchet tooth 202 are disengaged, and the upper connecting rod 320 and the corresponding hinge shaft 201 can rotate relative to each other, and the relative rotation between the two is not restricted.

[0053] In this embodiment, the first tooth plate and the second tooth plate are meshed, and the first ratchet 322 cooperates with the second ratchet 202. When the pull plate 200 moves relative to the suspension rod 100 in the first direction to the side away from the base 110, that is, when the pull plate 200 is pulled upward alone, the first tooth plate is retracted into the suspension rod 100 and does not mesh with the second tooth plate, and the second ratchet 202 moves in the axial direction of the hinge shaft 201 until it is misaligned with the first ratchet 322 in the axial direction of the hinge shaft 201. At this time, the upward movement of the pull plate 200 will cause the upper connecting rod 320 to rotate around the axial direction of the hinge shaft 201 toward the side close to the suspension rod 100. At this time, the multiple support arms 310 are tightened toward the side close to the suspension rod 100.

[0054] Then, the first tooth plate and the second tooth plate are kept in a disengaged state, and the second ratchet 202 is moved in the axial direction of the hinge shaft 201 to engage with the first ratchet 322, and the pull plate 200 is released. The pull plate 200 will move relative to the suspension rod 100 along the first direction toward the side close to the base 110, that is, when the pull plate 200 is lowered alone, the pull plate 200 will cause the upper connecting rod 320 to rotate around the axial direction of the hinge shaft 201 toward the side away from the suspension rod 100. At this time, the multiple support arms 310 are opened toward the side away from the suspension rod 100 and abut against the inner wall of the stator core.

[0055] When the suspension rod 100 moves upward along the first direction, the first tooth plate extends out to mesh with the second tooth plate, thereby locking the suspension rod 100 and the pull plate 200, so that the two can move synchronously. At this time, the upper connecting rod 320 has a tendency to move toward the side close to the suspension rod 100 relative to the axis direction of the pull plate 200 around the hinge shaft 201, but due to the restriction of the first ratchet 322 and the second ratchet 202, the rotation of the upper connecting rod 320 is restricted at this time, and the upper connecting rod 320 and the pull plate 200 are temporarily locked. Therefore, when the suspension rod 100 moves upward along the first direction, the pull plate 200 and the upper connecting rod 320 will move upward synchronously with the suspension rod 100.

[0056] In combination with the above embodiments, the specific working process is as follows:

[0057] When in use, the stator core to be hoisted is placed on the external transfer table surface, and the pull plate 200 is first moved relative to the suspension rod 100 along the first direction to the side away from the base 110, so that the first tooth plate is retracted into the suspension rod 100 and does not mesh with the second tooth plate, and the second ratchet 202 is moved in the axial direction of the hinge shaft 201 and is mutually misaligned with the first ratchet 322 in the axial direction of the hinge shaft 201. At this time, the upward movement of the pull plate 200 will cause the upper connecting rod 320 to rotate around the axial direction of the hinge shaft 201 toward the side close to the suspension rod 100. At this time, the multiple support arms 310 are tightened toward the side close to the suspension rod 100. Then the generator assembly fixture is placed as a whole in the stator core to be moved, and the base 110 is in contact with the transfer table surface.

[0058] Then, the first tooth plate and the second tooth plate are kept in a disengaged state, and the second ratchet 202 is moved in the axial direction of the hinge shaft 201 to engage with the first ratchet 322, and the pull plate 200 is released. The pull plate 200 will move relative to the suspension rod 100 along the first direction toward the side close to the base 110, that is, when the pull plate 200 is lowered alone, the pull plate 200 will cause the upper connecting rod 320 to rotate around the axial direction of the hinge shaft 201 toward the side away from the suspension rod 100. At this time, the multiple support arms 310 are opened toward the side away from the suspension rod 100 and abut against the inner wall of the stator core.

[0059] Then, the suspension rod 100 is pulled to move. When the suspension rod 100 moves upward in the first direction, the first tooth plate is extended to engage with the second tooth plate, thereby locking the suspension rod 100 and the pull plate 200, so that the two can move synchronously. Due to the restriction of the first ratchet 322 and the second ratchet 202, the rotation of the upper connecting rod 320 is restricted at this time, and the upper connecting rod 320 and the pull plate 200 are temporarily locked. Therefore, when the suspension rod 100 moves upward in the first direction, the pull plate 200 and the upper connecting rod 320 will move upward synchronously with the suspension rod 100. The first elastic member 313 between the first support rod 311 and the second support rod 312 is stretched.

[0060] When the suspension rod 100 moves, the support arm 310 abuts against the inner wall of the stator core and does not move. Therefore, as the suspension rod 100 moves, the angle between the lower connecting rod 330 and the suspension rod 100 will increase, and the length of the lower connecting rod 330 will decrease, that is, the second elastic member 333 between the third support rod 331 and the fourth support rod 332 will be compressed. When the first elastic member 313 is stretched, the first sliding rod 314 on the first support rod 311 will slide in the first chamber 315 of the second support rod 312, so that the hydraulic oil in the first chamber 315 enters the second chamber 319 from the connecting pipe. On the basis that the lower connecting rod 330 rotates relative to the suspension rod 100 to compress the second elastic member 333 between the third support rod 331 and the fourth support rod 332, the hydraulic oil entering the second chamber 319 from the first chamber 315 will cause the sliding plate 318 to slide. The sliding of the sliding plate 318 will further compress the second elastic member 333, increase the component force of the second elastic member 333 in the horizontal direction, and control the angle between the lower connecting rod 330 and the suspension rod 100, thereby avoiding excessive rotation of the lower connecting rod 330 relative to the suspension rod 100 and reducing the proportion of the positive pressure of the support arm 310 on the stator core.

[0061] And the gravity of the stator core is positively correlated with the deformation degree of the first elastic member 313. The larger the deformation of the first elastic member 313, the larger the deformation of the second elastic member 333. When the second elastic member 333 is compressed to the limit position, the second elastic member 333 cannot be further compressed. At this time, the length between the third support rod and the fourth support rod remains constant, that is, the length of the lower connecting rod 330 remains constant. The angle between the lower connecting rod 330 and the suspension rod 100 cannot continue to change.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for assembling a generator, characterized in that: The invention comprises a suspension rod (100), a pull plate (200) and a plurality of lifting assemblies (300); the suspension rod (100) is arranged along a first direction, the first direction being a vertical direction, and a base (110) is arranged at one end of the suspension rod (100); the pull plate (200) can be slidably mounted on the suspension rod (100) along the first direction; the plurality of lifting assemblies (300) are evenly distributed on the suspension rod (100) around the first direction; the lifting assemblies (300) comprise a support arm (310), an upper connecting rod (320) and a lower connecting rod (330); the support arm (310) is arranged along the first direction, the support arm (310) comprises a first support rod (311) and a second support rod (312), and a first elastic member is provided between the first support rod (311) and the second support rod (312). The first support rod (311) and the pull plate (200) are connected to each other by a first connecting rod (313), the first support rod (311) and the pull plate (200) are arranged in sequence in a first direction, and the upper connecting rod (320) is rotatably connected between the first support rod (311) and the pull plate (200); and when the suspension rod (100) moves along the first direction, the pull plate (200) and the first support rod (311) can move synchronously with the suspension rod (100); the lower connecting rod (330) comprises a third support rod (331) and a fourth support rod (332), the third support rod (331) is rotatably connected to the second support rod (312), the fourth support rod (332) is rotatably connected to the suspension rod (100), the third support rod (331) and the fourth support rod (332) are connected via a second elastic member (333), and the first elastic member (313) The first elastic member (313) is connected to the second elastic member (333) through a connecting mechanism, and the stretching of the first elastic member (313) can cause the connecting mechanism to operate, and the operation of the connecting mechanism can compress the second elastic member (333), and make the deformation of the first elastic member (313) positively correlated with the deformation of the second elastic member (333). The connecting mechanism includes a first sliding rod (314), a first chamber (315), an adjusting chamber (316), a sliding chamber (317) and a sliding plate (318); the first sliding rod (314) is arranged on the first support rod (311), the first chamber (315) is opened on the second support rod (312), and the first chamber (315) is filled with hydraulic oil; and the first sliding rod (314) is sleeved in the first chamber (315). The first sliding rod (314) is slidably sealed with the inner wall of the first chamber (315); when the first elastic member (313) is stretched, the hydraulic oil in the first chamber (315) will be compressed; the regulating chamber (316) and the sliding chamber (317) are both opened in the third support rod (331); the sliding plate (318) is arranged in the regulating chamber (316); the sliding plate (318) is slidably sealed with the inner wall of the regulating chamber (316); a second chamber (319) is defined between the sliding plate (318) and the regulating chamber (316); the second chamber (319) is communicated with the first chamber (315); the second elastic member (333) is located in the regulating chamber (316) and is installed between the sliding plate (318) and the fourth support rod (332);The fourth support rod (332) passes through the adjustment chamber (316) and is slidably mounted in the sliding chamber (317). ; 2. A fixture for assembling a generator according to claim 1, characterized in that: A first tooth plate is arranged on the peripheral wall surface of the suspension rod (100), the first tooth plate is arranged along the first direction, the teeth on the first tooth plate are ratchet teeth, and the first tooth plate can be extended and retracted on the suspension rod (100) along the second direction, the second direction being the radial direction of the suspension rod (100); a second tooth plate is arranged on the inner wall surface of the pulling plate (200), the second tooth plate is arranged along the first direction, the teeth on the second tooth plate are ratchet teeth, and when the first tooth plate extends out of the suspension rod (100), the first tooth plate can mesh with the second tooth plate, and the unidirectional movement of the first tooth plate in the first direction can drive the movement of the second tooth plate, and when the first tooth plate is retracted into the suspension rod (100) along the second direction, the pulling plate (200) and the suspension rod (100) can move relative to each other in the first direction.

3. A fixture for assembling a generator according to claim 1, characterized in that: A plurality of hinge shafts (201) are evenly distributed around a first direction on the pull plate (200), the hinge shafts (201) are fixedly mounted on the pull plate (200), a plurality of upper connecting rods (320) are each provided with a rotation groove (321), the plurality of rotation grooves (321) are arranged one-to-one with the plurality of hinge shafts (201), the hinge shafts (201) are perpendicular to the upper connecting rods (320) arranged correspondingly thereto, and the rotation grooves (321) on the upper connecting rods (320) are connected to the hinge shafts (201) arranged correspondingly thereto. 1) Rotational matching; a first tooth segment is arranged on the inner peripheral wall surface of the rotation groove (321), the first tooth segment comprises a plurality of first ratchet teeth (322) uniformly distributed around the axial direction of the hinge shaft (201), a second ratchet tooth (202) for matching with the first ratchet teeth (322) is arranged around the axial direction of the hinge shaft (201), the second ratchet tooth (202) is a telescopic tooth, and the second ratchet tooth (202) can slide on the hinge shaft (201) along the axial direction of the hinge shaft (201).

4. A fixture for assembling a generator according to claim 1, characterized in that: The support arm (310) further comprises a lifting plate (340), which is fixedly mounted on the second support rod (312) and is located on a side of the second support rod (312) away from the suspension rod (100) in the second direction.

5. A fixture for assembling a generator according to claim 4, characterized in that: The lifting plate (340) is provided with a plurality of first through holes, and the second support rod (312) is provided with a plurality of second through holes for cooperating with the plurality of first through holes, and the first through holes are fixedly connected to the corresponding second through holes by means of screws.

6. A fixture for assembling a generator according to claim 1, characterized in that: The second chamber (319) is connected to the first chamber (315) via a connecting pipe.

7. A fixture for assembling a generator according to claim 1, characterized in that: A lifting ring (120) is provided at one end of the suspension rod (100) away from the base (110) in the first direction.

8. A fixture for assembling a generator according to claim 1, characterized in that: Two lifting rings (210) are provided on a side of the pull plate (200) away from the base (110) in the first direction; when in use, the lifting rings (210) are pulled to drive the pull plate (200) to move.

9. A fixture for assembling a generator according to claim 1, characterized in that: The number of the lifting components (300) is three.

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