Generator rotor part parallelism testing fixture

Abstract

The utility model relates to the technical field of detection equipment, in particular to a generator rotor part parallel detection tool, which comprises a base, two sliding seats and a dial indicator, the sliding seats are slidably connected to the base, the sliding direction of the sliding seats is horizontal, the two sliding seats are distributed at intervals along the sliding direction of the sliding seats, and the dial indicator is connected to the base. And the dial indicator detects the parallelism of the workpiece outer keyway. A workpiece is placed on the two sliding seats, the detection rod of the dial indicator extends into the key groove in the outer side of the workpiece, the sliding seats are pushed to slide, the workpiece is driven to slide, the dial indicator detects the parallelism of the key groove in the outer side of the workpiece, the operation process is simplified, manual intervention is reduced, and the equipment detection accuracy is improved.

Description

Technical Field

[0001] This application relates to the technical field of testing equipment, and in particular to a parallel inspection tool for generator rotor parts. Background Technology

[0002] Generator rotor components are core components of power systems, and their manufacturing precision directly affects the performance and reliability of generator sets. As a connecting mechanism for transmitting torque, the keyway needs to be matched with the key. To ensure a stable fit between the two, the symmetry detection of the keyway is particularly important. This can effectively avoid product quality problems caused by dimensional deviations, thereby enhancing the overall stability of the production line and its market competitiveness.

[0003] In actual production, to ensure the quality of generator rotor parts, it is usually necessary to accurately inspect the parallelism of the outer keyway. Traditional manual measurement methods are easily affected by human factors, such as reading errors and improper operation, resulting in unstable measurement results. While automated testing equipment improves measurement accuracy, it is bulky, complex in structure, not easily adaptable to various production environments, and has high maintenance costs. Utility Model Content

[0004] To facilitate the inspection of the parallelism of the keyway on the outer side of generator rotor parts and improve the accuracy of equipment inspection, this application provides a parallel inspection tool for generator rotor parts.

[0005] The parallel inspection fixture for generator rotor parts provided in this application adopts the following technical solution:

[0006] A parallel inspection fixture for generator rotor parts includes a base, a sliding seat, and a dial indicator. The sliding seat is slidably connected to the base, and the sliding direction of the sliding seat is horizontal. There are two sliding seats, which are spaced apart along the sliding direction of the sliding seat. The dial indicator is connected to the base and is used to detect the parallelism of the keyway on the outer side of the workpiece.

[0007] By adopting the above technical solution, the workpiece is placed on two sliding seats, and the measuring rod of the dial indicator extends into the keyway on the outside of the workpiece, pushing the sliding seats to slide and causing the workpiece to slide. This enables the dial indicator to detect the parallelism of the keyway on the outside of the workpiece, simplifying the operation process, reducing manual intervention, and improving the accuracy of equipment testing.

[0008] Preferably, it also includes a slide rail, which is connected to the base, and the length direction of the slide rail is parallel to the sliding direction of the sliding seat, and the sliding seat is slidably connected to the slide rail.

[0009] By adopting the technical scheme, the slide rails are arranged, the slide seats are slidably connected to the slide rails, the slide stability of the slide seats is improved, the slide seats always keep a horizontal state during movement, the consistency of measurement results is ensured, and the accuracy and reliability of the parallelism of the key grooves on the outer side of the workpiece are improved.

[0010] Preferably, the support seats are arranged, the number of the support seats is the same as that of the slide seats and one-to-one correspondence is provided, the support seats are connected to the side of the slide seats away from the base, V-shaped grooves are arranged on the side of the support seats away from the slide seats, and the groove walls of the V-shaped grooves are used to be in close contact with the outer wall of the workpiece.

[0011] By adopting the technical scheme, the support seats are connected to the slide seats, the V-shaped grooves are arranged on the support seats, the V-shaped grooves are used to embed the workpiece, the groove walls of the V-shaped grooves are in close contact with the outer wall of the workpiece, the possibility of relative movement of the workpiece relative to the slide seat during detection is reduced, the stability of the workpiece is improved, and the accuracy of equipment detection is improved.

[0012] Preferably, the connecting plates are arranged, and the two ends of the connecting plate are connected to the two support seats, respectively.

[0013] By adopting the technical scheme, the connecting plates are arranged, the relative fixation of the two support seats is realized, one slide seat is pushed to slide by the staff, the two slide seats are synchronized at one end, and the convenience of equipment operation is improved.

[0014] Preferably, the abutting blocks are arranged, one end of the abutting block is connected to the side surface of one support seat close to the other support seat, the abutting block is used to be embedded in the embedding groove on the outer side of the workpiece, two abutting blocks are arranged, the two abutting blocks are symmetrically distributed along the direction perpendicular to the sliding direction of the slide seat, the other end of the abutting block is provided with a chamfer, the chamfer is located on the side of the abutting block close to the base, and the chamfer is used to abut against the groove wall of the key groove on the outer side of the workpiece.

[0015] By adopting the technical scheme, the abutting blocks are connected to the support seats, the chamfers are arranged on the abutting blocks, the chamfers abut against the groove wall of the key groove on the outer side of the workpiece, the stability of the connection between the workpiece and the support seat is improved, the possibility of separation of the workpiece from the support seat during detection is reduced, the detection error is reduced, and the reliability of the equipment and the accuracy of the detection result are improved.

[0016] Preferably, the dial gauges are arranged, and two dial gauges are arranged, the two dial gauges are symmetrically distributed along the direction perpendicular to the sliding direction of the slide seat.

[0017] By adopting the technical scheme, the two dial gauges are arranged, the key grooves on the two sides of the workpiece are detected at the same time, and the work efficiency of equipment detection is improved.

[0018] Preferably, the mounting seat is provided, the number of mounting seats is same as the number of dial gauges and one-to-one correspondence, the mounting seat is connected to the base, the dial gauge is slidably connected to one end of the mounting seat away from the base, the sliding direction of the dial gauge is perpendicular to the sliding direction of the sliding seat, the one end of the mounting seat away from the base is provided with a guide groove, the dial gauge is connected with a guide block, the guide block is slidably embedded in the guide groove, and the side wall of the guide block is in close contact with the groove wall of the guide groove.

[0019] By adopting the above technical scheme, the mounting seat is provided, and the guide block of the dial gauge is slidably embedded in the guide groove, so as to adapt to workpieces of different sizes and improve the application range of the equipment.

[0020] Preferably, the groove bottom of the guide groove is provided with an adjusting groove, the both sides of the adjusting groove are respectively provided with a fourth connecting hole and a fourth fixing hole, the fourth connecting hole is used for the fixed bolt to pass through and be screwed with the fourth fixing hole to realize that the groove wall of the guide groove abuts against the side wall of the guide block.

[0021] By adopting the above technical scheme, the fixed bolt is screwed with the fourth fixing hole after passing through the fourth connecting hole, the both sides of the adjusting groove are driven to approach each other, the groove wall of the guide groove is driven to clamp the side wall of the guide block, the relative fixation of the dial gauge and the mounting seat is realized, the possibility of deviation of the dial gauge in the detection process is reduced, and the accuracy of the detection result is improved.

[0022] Preferably, the mounting seat further comprises a connecting groove, the base is provided with a third fixing hole, the number of third fixing holes is same as the number of connecting grooves and one-to-one correspondence, and the connecting groove is used for the fixed bolt to pass through and be screwed with the third fixing hole.

[0023] By adopting the above technical scheme, the fixed bolt is screwed with the third fixing hole after passing through the connecting groove, the position of the mounting seat can be adjusted or the fixed bolt can be loosened to replace or maintain the mounting seat, and the service life of the equipment is improved.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The workpiece is placed on the two sliding seats, the detection rod of the dial gauge is inserted into the key groove outside the workpiece, the sliding seat is pushed to slide, the workpiece is driven to slide, the parallelism of the dial gauge to the key groove outside the workpiece is detected, the operation process is simplified, the manual intervention is reduced, and the accuracy of the equipment detection is improved.

[0026] 2. The support seat is connected to the sliding seat, the support seat is provided with a V-shaped groove, the V-shaped groove is used for embedding the workpiece, the groove wall of the V-shaped groove is in close contact with the outer wall of the workpiece, the possibility of relative movement of the workpiece relative to the sliding seat in the detection process is reduced, the stability of the workpiece placement is improved, and the accuracy of the equipment detection is improved.

[0027] 3. The mounting seat is arranged, the guide block of the dial gauge is slidably embedded in the guide groove to adapt to workpieces of different sizes, improve the application range of the equipment, and the fixing bolt is screwed through the fourth connecting hole and the fourth fixed hole to drive the two side walls of the adjusting groove to approach each other, drive the guide groove wall to clamp the side wall of the guide block, realize the relative fixation of the dial gauge and the mounting seat, reduce the possibility of deviation of the dial gauge during detection, and improve the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of a generator rotor part parallel gauge.

[0029] Figure 2 is a sectional view of the generator rotor part parallel gauge, mainly showing the connection of the base and the slide rail.

[0030] Figure 3 is a sectional view of the generator rotor part parallel gauge, mainly showing the connection of the support seat and the sliding seat.

[0031] Figure 4 is a sectional view of the generator rotor part parallel gauge, mainly showing the mounting assembly and the base.

[0032] Figure 5 is a partial sectional view of the generator rotor part parallel gauge, mainly showing the mounting assembly.

[0033] BRIEF DESCRIPTION OF DRAWINGS:

[0034] 1, base; 11, first fixed hole; 12, third fixed hole;

[0035] 2, slide rail; 21, first connecting hole; 22, first embedded groove;

[0036] 3, support assembly; 31, sliding seat; 311, sliding groove; 312, second fixed hole; 32, support seat; 321, connecting part; 3211, groove; 3212, second connecting hole; 322, support part; 3221, V-shaped groove; 33, connecting plate; 331, third connecting hole; 34, abutting block; 341, chamfer;

[0037] 4, detection assembly; 41, mounting seat; 411, connecting section; 4111, connecting groove; 412, mounting section; 4121, guide groove; 4122, adjusting groove; 4123, fourth fixed hole; 4124, fourth connecting hole; 42, dial gauge; 421, guide block. DETAILED DESCRIPTION

[0038] The application will be further described in detail below with reference to the accompanying drawings.

[0039] REFERENCE Figure 1This application discloses a parallel inspection fixture for generator rotor parts, which includes a base 1 and a slide rail 2. The slide rail 2 is fixedly connected to one side surface of the base 1 along the sliding direction of the base 1. The length direction of the slide rail 2 is parallel to the length direction of the base 1. The two ends of the slide rail 2 along the length direction are flush with the two sides of the base 1 along the length direction of the base 1.

[0040] Reference Figure 2 The base 1 has a plurality of first fixing holes 11, which penetrate the base 1 along the sliding direction of the base 1 and are spaced apart along the length of the base 1. In this embodiment, there are nine first fixing holes 11, which are evenly distributed along the length of the base 1. The slide rail 2 has first connecting holes 21, the number of which is the same as the number of first fixing holes 11 and corresponds one-to-one. The first connecting holes 21 are used for the fixing bolts to pass through and be threaded into the first fixing holes 11. A first groove 22 is provided on the hole wall of the first connecting hole 21 at the end away from the base 1, and the first groove 22 is used for the head of the fixing bolt to be inserted.

[0041] Reference Figure 1 and Figure 3A parallel inspection fixture for generator rotor parts also includes a support assembly 3, which comprises a sliding seat 31, a support base 32, and a connecting plate 33. The sliding seat 31 is slidably connected to the slide rail 2, and the sliding direction of the sliding seat 31 is parallel to the length direction of the slide rail 2. A groove 311 is provided on the side of the sliding seat 31 near the base 1, and both ends of the groove 311 extend through the sliding seat 31 along its sliding direction. The slide rail 2 is slidably embedded in the groove 311, and the groove wall of the groove 311 is in contact with the side wall of the slide rail 2. Two sliding seats 31 are provided, and the two sliding seats 31 are spaced apart along their sliding direction. The number of support seats 32 is the same as the number of sliding seats 31 and they correspond one-to-one. Each support seat 32 includes a connecting part 321 and a supporting part 322. The connecting part 321 is fixedly connected to the side of the sliding seat 31 away from the base 1. The side of the connecting part 321 near the base 1 has a groove 3211. The two ends of the groove 3211 pass through the connecting part 321 along the sliding direction of the sliding seat 31. The sliding seat 31 is embedded in the groove 3211, and the side wall of the sliding seat 31 is in contact with the groove wall of the groove 3211. The surface of the sliding seat 31 away from the base 1 has four second fixing holes 312. The four second fixing holes 312 are divided into two groups. The two groups of second fixing holes 312 are symmetrically distributed along the sliding direction of the sliding seat 31. The two second fixing holes 312 in the same group are spaced apart along the width direction of the base 1. The two second fixing holes 312 in the same group are distributed on both sides of the groove 311. The connecting part 321 is provided with a second connecting hole 3212. The number of second connecting holes 3212 is the same as the number of second fixing holes 312 and they correspond one-to-one. The two ends of the connecting plate 33 are respectively fixedly connected to the side surface of the connecting part 321 away from the base 1. The connecting plate 33 is provided with four third connecting holes 331. The four third connecting holes 331 correspond to the two second connecting holes 3212 on the side of the connecting part 321 near the other support 32. The four third connecting holes 331 are distributed at the four corners of the connecting plate 33. The third connecting holes 331 and the second connecting holes 3212 are used for the fixing bolt to pass through and be threaded into the second fixing hole 312. The head of the fixing bolt abuts against the side surface of the connecting part 321 or the connecting plate 33 away from the base 1. One end of the support portion 322 is fixedly connected to the side surface of the connecting portion 321 away from the base 1. The support portion 322 is located between two sets of second connecting holes 3212. The two side walls of the support portion 322 along the width direction of the base 1 are flush with the two side walls of the connecting portion 321 along the width direction of the base 1. The end of the support portion 322 away from the connecting portion 321 is provided with a V-groove 3221. The two ends of the V-groove 3221 along the sliding direction of the sliding seat 31 penetrate the support portion 322. The groove wall of the V-groove 3221 is used to fit against the outer wall of the workpiece.

[0042] The support assembly 3 also includes a clamping block 34. One end of the clamping block 34 is fixedly connected to the side surface of the support portion 322 near the other support base 32. There are two clamping blocks 34, which are symmetrically distributed along the length of the support portion 322. The side surface of the clamping block 34 away from the other clamping block 34 is flush with the side surface of the support portion 322 along the width direction of the base 1. The end of the clamping block 34 away from the support portion 322 is provided with a chamfer 341. The chamfer 341 is located on the side of the clamping block 34 near the base 1 and is used to clamp against the groove wall of the keyway on the outer side of the workpiece.

[0043] Reference Figure 1 and Figure 4 A parallel inspection fixture for generator rotor parts also includes an inspection component 4. The inspection component 4 includes a mounting base 41 and a dial indicator 42. There are two mounting bases 41, which are symmetrically distributed along the width direction of the base 1. The mounting base 41 includes a connecting section 411 and a mounting section 412. The connecting section 411 is fixedly connected to the side surface of the base 1 near the slide rail 2. The length direction of the connecting section 411 is parallel to the width direction of the base 1. The base 1 is provided with a third fixing hole 12. The number of the third fixing holes 12 is the same as the number of connecting sections 411 and they correspond one-to-one. The connecting section 411 is provided with a connecting groove 4111. The connecting groove 4111 is used for the fixing bolt to pass through and be threaded into the third fixing hole 12. The outer wall of the fixing bolt shank fits against the groove wall of the connecting groove 4111, and the head of the fixing bolt abuts against the side surface of the connecting section 411 away from the base 1. One end of the mounting section 412 is fixedly connected to the surface of the connecting section 411 away from the base 1. The surface of the mounting section 412 near the slide rail 2 is flush with the end of the connecting section 411 near the slide rail 2. The number of dial indicators 42 is the same as the number of mounting bases 41 and they correspond one-to-one. The dial indicators 42 are slidably connected to the end of the mounting section 412 away from the base 1. The sliding direction of the dial indicators 42 is parallel to the length direction of the connecting section 411. The measuring rod of the dial indicator 42 is used to press against the groove wall of the keyway on the outer side of the workpiece to detect the parallelism of the keyway on the outer side of the workpiece.

[0044] Reference Figure 4 and Figure 5The mounting base 41 has a guide groove 4121 at one end away from the connecting section 411. The guide groove 4121 extends through the mounting section 412 along the sliding direction of the dial indicator 42. A guide block 421 is fixedly connected to the dial indicator 42, and the guide block 421 is slidably embedded in the guide groove 4121, with its sidewall abutting against the sidewall of the guide groove 4121. In this embodiment, the guide block 421 is a dovetail block. An adjustment groove 4122 is provided at the bottom of the guide groove 4121, extending through the mounting section 412 along the sliding direction of the dial indicator 42. A fourth fixing hole 4123 is provided on one side wall of the adjustment groove 4122 along the length direction of the base 1. The axis of the fourth fixing hole 4123 is parallel to the length direction of the base 1, and the fourth fixing hole 4123 communicates with the outside. A fourth connecting hole 4124 is provided on the other side of the adjusting groove 4122. The axis of the fourth connecting hole 4124 coincides with the axis of the fourth fixing hole 4123. The fourth connecting hole 4124 is connected to the outside. The fourth connecting hole 4124 is used for the fixing bolt to pass through and be threaded to the fourth fixing hole 4123 so that the groove wall of the guide groove 4121 abuts against the side wall of the guide block 421.

[0045] The implementation principle of a parallel inspection fixture for generator rotor parts according to an embodiment of this application is as follows: The two ends of the workpiece are embedded into two V-grooves 3221. The workpiece is pushed to slide along its axial direction, causing two clamping blocks 34 to embed into the keyway on the outer side of the workpiece, with the chamfer 341 pressing against the wall of the keyway. The fixing bolts are loosened, and the dial indicator 42 is pushed to slide, causing the measuring rod of the dial indicator 42 to press against the wall of the keyway and the fixing bolts, causing the wall of the guide groove 4121 to press against the side wall of the guide block 421. The sliding seat 31 is pushed to slide, allowing the workpiece to slide along the length of the slide rail 2, and the readings of the two dial indicators 42 are observed.

[0046] Remove the workpiece, rotate it 180° around its own axis, and then re-insert it into the V-groove 3221. Inspect the groove wall on the other side of the keyway of the workpiece, observe the reading of dial indicator 42, and determine the parallelism of the keyways on both sides of the workpiece.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A parallel inspection fixture for generator rotor parts, characterized in that: It includes a base (1), a sliding seat (31), and a dial indicator (42); the sliding seat (31) is slidably connected to the base (1); the sliding direction of the sliding seat (31) is horizontal; there are two sliding seats (31); the two sliding seats (31) are distributed at intervals along the sliding direction of the sliding seat (31); the dial indicator (42) is connected to the base (1); the dial indicator (42) detects the parallelism of the keyway on the outer side of the workpiece.

2. The parallel inspection fixture for generator rotor parts according to claim 1, characterized in that: It also includes a slide rail (2); the slide rail (2) is connected to the base (1); the length direction of the slide rail (2) is parallel to the sliding direction of the sliding seat (31); the sliding seat (31) is slidably connected to the slide rail (2).

3. The parallel inspection fixture for generator rotor parts according to claim 2, characterized in that: It also includes a support base (32); the number of support bases (32) is the same as the number of sliding bases (31) and they correspond one-to-one; the support base (32) is connected to the side of the sliding base (31) away from the base (1); the side of the support base (32) away from the sliding base (31) is provided with a V-groove (3221); the wall of the V-groove (3221) is used to fit against the outer wall of the workpiece.

4. The parallel inspection fixture for generator rotor parts according to claim 3, characterized in that: It also includes a connecting plate (33); the two ends of the connecting plate (33) are respectively connected to two support bases (32).

5. The parallel inspection fixture for generator rotor parts according to claim 3, characterized in that: It also includes a clamping block (34); one end of the clamping block (34) is connected to the side surface of a support base (32) near another support base (32); the clamping block (34) is used to be embedded in the groove on the outside of the workpiece; there are two clamping blocks (34); the two clamping blocks (34) are symmetrically distributed along the sliding direction perpendicular to the sliding seat (31); the other end of the clamping block (34) is provided with a chamfer (341); the chamfer (341) is located on the side of the clamping block (34) near the base (1); the chamfer (341) is used to abut against the groove wall of the keyway on the outside of the workpiece.

6. The parallel inspection fixture for generator rotor parts according to claim 1, characterized in that: Two dial gauges (42) are provided; the two dial gauges (42) are symmetrically distributed along the sliding direction perpendicular to the sliding seat (31).

7. The parallel inspection fixture for generator rotor parts according to claim 6, characterized in that: It also includes a mounting base (41); the number of mounting bases (41) is the same as the number of dial indicators (42) and they correspond one-to-one; the mounting base (41) is connected to the base (1); the dial indicator (42) is slidably connected to the end of the mounting base (41) away from the base (1); the sliding direction of the dial indicator (42) is perpendicular to the sliding direction of the sliding seat (31); the end of the mounting base (41) away from the base (1) is provided with a guide groove (4121); the dial indicator (42) is connected to a guide block (421); the guide block (421) is slidably embedded in the guide groove (4121); the side wall of the guide block (421) is in contact with the groove wall of the guide groove (4121).

8. The parallel inspection fixture for generator rotor parts according to claim 7, characterized in that: The bottom of the guide groove (4121) is provided with an adjustment groove (4122); the two sides of the adjustment groove (4122) are respectively provided with a fourth connecting hole (4124) and a fourth fixing hole (4123); the fourth connecting hole (4124) is used to allow the fixing bolt to pass through and be threaded to the fourth fixing hole (4123) so that the groove wall of the guide groove (4121) abuts against the side wall of the guide block (421).

9. The parallel inspection fixture for generator rotor parts according to claim 7, characterized in that: The mounting base (41) also includes a connecting groove (4111); the base (1) is provided with a third fixing hole (12); the number of the third fixing holes (12) is the same as the number of the connecting grooves (4111) and they correspond one to one; the connecting groove (4111) is used for the fixing bolt to pass through and be threaded to the third fixing hole (12).

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