CN219433975U - Generator stator and rotor clearance measurer - Google Patents
Generator stator and rotor clearance measurer Download PDFInfo
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- CN219433975U CN219433975U CN202320775300.1U CN202320775300U CN219433975U CN 219433975 U CN219433975 U CN 219433975U CN 202320775300 U CN202320775300 U CN 202320775300U CN 219433975 U CN219433975 U CN 219433975U
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- inner cylinder
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- stator
- rotor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to the technical field of generator maintenance, in particular to a generator stator-rotor gap measurer, wherein an inner cylinder is fixedly connected in a measuring base, the front end of the inner cylinder is provided with an arc bent pipe part, a ruler body is connected in the inner cylinder in a sliding manner, the front end of the ruler body is fixedly connected with a movable probe rod, the front end of the movable probe rod is provided with a movable contact, the movable contact extends out of the arc bent pipe part at the front end of the inner cylinder, and the upper part of the front end of the inner cylinder is fixedly connected with a fixed contact; the utility model has the advantages of convenient use, high measurement precision, convenient reading and stable and reliable use, can completely replace a mode of measuring the stator and rotor clearance by an oblique ruler, provides a novel measuring tool and a novel measuring method for measuring the stator and rotor clearance of the generator, ensures the reliability and accuracy of the measured data of the stator and rotor clearance of the generator, avoids hidden troubles of equipment such as uneven vibration heat dissipation of the generator caused by uneven magnetic resistance caused by the deviation of the stator and rotor clearance, solves the problem of inaccurate stator and rotor clearance measurement in the maintenance of the generator, and ensures the maintenance quality of the stator and rotor of the generator.
Description
Technical Field
The utility model relates to the technical field of generator maintenance, in particular to a generator stator and rotor gap measurer.
Background
In the process of overhauling the generator, the gap measurement between the stator and the rotor of the generator is an important overhauling procedure, and accurate data is required. The original generator shutdown maintenance stator and rotor clearance test adopts an inclined ruler measuring method, red lead powder or chalk dust is smeared on the inclined ruler, a guard ring is taken as a reference surface to extend between the stator and the rotor, and an inclined ruler collision stator core scratch mark is taken as a reference point to be measured by a vernier caliper; because factors such as manual operation stretching force and measuring point position influence, the measured data are inconsistent and have no comparability each time, so that the gap adjustment of the stator and the rotor of the generator is not accurate and is used as a basis, the gap between the stator and the rotor of the generator cannot be adjusted or the adjustment does not reach the standard, the magnetic resistance of the stator and the rotor is inevitably uneven, the generator can generate hidden dangers such as vibration, uneven heat dissipation and the like in operation, the performance index of the generator is influenced, and the hidden dangers of safe operation of the generator are caused.
Disclosure of Invention
The utility model aims to provide a stator and rotor gap measurer for a generator, which provides a reliable measuring method and an accurate tool for adjusting the stator and rotor gap of the generator and eliminates the hidden trouble of equipment with uneven vibration and heat dissipation in the operation of the generator caused by the deviation of the stator and rotor gap.
The utility model relates to a generator stator and rotor clearance measurer, which comprises a measuring base, wherein the measuring base is a cylinder with a rectangular cross section, one side surface of the measuring base is provided with a measuring notch, the measuring notch is a rectangular groove, the measuring notch penetrates through the measuring base in the length direction, an inner cylinder is fixedly connected in the measuring base, the inner cylinder is a cylinder with a rectangular cross section, the rear end of the inner cylinder is flush with the rear end of the measuring base, the front end of the inner cylinder extends out of the measuring base, the front end of the inner cylinder is provided with an arc bent pipe part, and the arc bent pipe part is a downward 90-degree quarter arc; a reading groove is formed in one side wall of the rear end of the inner cylinder, and is a rectangular groove; the reading groove is communicated with the measuring groove, a ruler body is connected in the inner barrel in a sliding mode, the front end of the ruler body is fixedly connected with a movable probe rod, a moving contact is arranged at the front end of the movable probe rod, the moving contact stretches out of an arc bent pipe portion at the front end of the inner barrel, and a fixed contact is fixedly connected to the upper portion of the front end of the inner barrel.
When the gap between the stator and the rotor of the motor is adjusted, the measuring base is held by hand, the top end of the static contact is propped against the inner wall of the stator core of the generator, the movable contact is driven by the movable probe to move by the sliding ruler body, the movable contact is driven to move towards the electronic rotor by the arrangement of the arc bent pipe part of the inner cylinder and is connected with the motor rotor in parallel, the position of the ruler body is determined by reading the missing slot and the measuring missing slot, the measuring point position is replaced, the above process is repeated, the consistency of the level of the measuring base and the front and back positions is ensured when different point positions are measured, and whether the gap between the stator and the rotor is uniform is determined by the positions of the ruler bodies of different point positions.
Further, the ruler body on be equipped with the vernier scale mark, the vernier scale mark is followed the reading and is lacked the inslot and is leaked, is equipped with the base scale mark on the measurement lacked the groove lateral wall.
Furthermore, the upper side wall and the lower side wall of the measurement notch are provided with inclined chamfers, and the base scale mark is arranged on the inclined planes of the inclined chamfers of the lower side wall of the measurement notch.
The setting of the vernier scale mark and the base scale mark is more convenient for determining the position of the ruler body, so that the use precision of the ruler is better. The base scale mark is arranged on the inclined plane of the inclined chamfer of the lower side wall of the measuring groove, so that the utility model can conveniently read.
Further, the inner cylinder stretches out the lateral wall bottom fixedly connected with supporting shoe of measuring base, and the supporting shoe is connected in the half department of inner cylinder length.
The supporting block provides a basis for measuring different point positions, so that measuring errors caused by inconsistent horizontal and front-back positions of the measuring base during measuring of different point positions are effectively prevented, the lower end of the supporting block is propped against the outer diameter of the generator guard ring during use, the top end of the static contact is propped against the inner wall of the stator core of the generator, and then the sliding of the ruler body is carried out, so that the consistency of the standard provided by the measuring base during measuring of different point positions can be ensured, and the accuracy of the utility model is effectively improved.
Further, the measuring base upper wall be equipped with the screw, the inner tube upper wall be equipped with the through-hole, the screw is coaxial with the through-hole, be connected with locking screw in the screw, locking screw lower extreme top is connected on the blade.
The setting of locking screw is used for locking the blade position, prevents that blade position from changing when the reading from influencing measuring accuracy.
Further, the one end that the blade was kept away from the removal probe rod stretches out measurement base and inner tube, the blade stretches out measurement base and the one end fixedly connected with handle of inner tube.
Further, the handle comprises an arc head and a straight handle, the straight handle is welded on the ruler body, and the arc head is arranged at one end of the straight handle far away from the ruler body.
The setting of handle is convenient for operate the blade, and the setting of circular arc head is convenient for hold more, has improved the travelling comfort of use.
Further, the fixed contact comprises a cross rod and a straight rod, the straight rod is fixedly connected to the top surface of the cross rod, an included angle of 90% is formed between the cross rod and the straight rod, the upper end of the straight rod is an arc surface, and the arc surface of the upper end of the straight rod is propped against the inner wall of the stator core of the generator.
The arc surface at the upper end of the straight rod can be better matched with the inner wall of the stator core of the generator, and the measurement accuracy is further improved.
Further, the cross section of the supporting block is triangular, the bottom surface of the triangular supporting block is welded on the bottom wall of the inner cylinder, and the vertex of the triangular supporting block is propped against the outer diameter of the generator guard ring.
The supporting blocks with the triangular cross sections enable the bottom ends of the supporting blocks to form line contact with the outer diameter of the generator guard ring, and measurement accuracy is further improved.
Further, the movable probe rod is made of carbon spring steel wires, the movable contact is in a reverse conical shape with a downward vertex, the vertex of the lower end of the reverse conical movable contact is propped against the outer wall of the generator rotor, and the outer diameter of the top of the reverse conical movable contact is larger than the inner diameter of the inner cylinder.
The carbon spring steel wire ensures the smooth sliding of the movable probe rod, the outer diameter of the top of the inverted conical moving contact is larger than the inner diameter of the inner cylinder, the moving contact is effectively prevented from retreating into the inner cylinder, and the use convenience is improved.
The beneficial effects of the utility model are as follows: the measuring base is a cylinder body with a rectangular cross section, an inner cylinder is fixedly connected in the measuring base, an arc bent pipe part is arranged at the front end of the inner cylinder, a ruler body is connected in the inner cylinder in a sliding manner, a movable probe rod is fixedly connected at the front end of the ruler body, a moving contact is arranged at the front end of the movable probe rod, the moving contact extends out of the arc bent pipe part at the front end of the inner cylinder, and a fixed contact is fixedly connected at the upper part of the front end of the inner cylinder; the utility model has the advantages of convenient use, high measurement precision, convenient reading and stable and reliable use, can completely replace a mode of measuring the stator and rotor clearance by an oblique ruler, provides a novel measuring tool and a novel measuring method for measuring the stator and rotor clearance of the generator, ensures reliable and accurate measurement data of the stator and rotor clearance of the generator, avoids hidden troubles of equipment such as uneven vibration heat dissipation of the generator caused by uneven magnetic resistance caused by the deviation of the stator and rotor clearance, solves the technical problem of inaccurate stator and rotor clearance measurement in the maintenance of the generator, ensures the maintenance quality of the stator and rotor of the generator, and improves the performance of the equipment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present utility model;
FIG. 3 is a schematic view of the measuring base of the present utility model;
FIG. 4 is a schematic structural view of an inner barrel of the present utility model;
FIG. 5 is a schematic view of the structure of the stationary contact of the present utility model;
FIG. 6 is a view in the B direction of FIG. 5 of the present utility model;
FIG. 7 is a schematic view of the structure of the blade of the present utility model;
FIG. 8 is a schematic view of the present utility model in use.
In the figure: 1. a measurement base; 101. measuring the groove lack; 102. a screw hole; 103. a base scale mark; 2. an inner cylinder; 201. reading the missing groove; 202. a through hole; 3. a locking screw; 4. a ruler body; 401. vernier scale marks; 5. a handle; 501. a circular arc head; 502. a straight shank; 6. moving the probe rod; 7. a moving contact; 8. a support block; 9. a stationary contact; 901. a cross bar; 902. a straight rod.
Detailed Description
As shown in fig. 1-8, the gap measurer for the stator and the rotor of the generator comprises a measuring base 1, wherein the measuring base 1 is a cylinder with a rectangular cross section, a measuring notch 101 is formed in one side surface of the measuring base 1, the measuring notch 101 is a rectangular groove, the measuring notch 101 penetrates through the measuring base 1 in the length direction, an inner cylinder 2 is fixedly connected in the measuring base 1, the inner cylinder 2 is a cylinder with a rectangular cross section, the rear end of the inner cylinder 2 is flush with the rear end of the measuring base 1, the front end of the inner cylinder 2 extends out of the measuring base 1, the front end of the inner cylinder 2 is provided with an arc bent pipe part, and the arc bent pipe part is a downward 90-degree quarter arc; a reading groove 201 is formed in one side wall of the rear end of the inner barrel 2, and the reading groove 201 is a rectangular groove; the reading defect groove 201 is communicated with the measurement defect groove 101, the ruler body 4 is connected in the inner cylinder 2 in a sliding manner, the movable probe rod 6 is fixedly connected to the front end of the ruler body 4, the movable contact 7 is arranged at the front end of the movable probe rod 6, the movable contact 7 extends out of an arc bent pipe part at the front end of the inner cylinder 2, the fixed contact 9 is fixedly connected to the upper portion of the front end of the inner cylinder 2, the fixed contact 9 comprises a cross rod 901 and a straight rod 902, the straight rod 902 is fixedly connected to the top surface of the cross rod 901, the cross rod 901 and the straight rod 902 form a 90% included angle, the upper end of the straight rod 902 is an arc surface, the arc surface of the upper end of the straight rod 902 is propped against the inner wall of a stator core of a generator, the support block 8 is connected to the position of one half of the length of the inner cylinder 2, the cross section of the support block 8 is triangular, the bottom surface of the triangle of the support block 8 is welded on the bottom wall of the inner cylinder 2, the vertex of the support block 8 is propped against the outer diameter of a generator guard ring, the movable probe rod 6 is made of a material of a spring wire, the movable probe rod 7 is in a conical shape with the vertex downward, the vertex of the vertex 7 is a conical shape, and the vertex 7 is connected to the outer diameter of the rotor 2 of the rotor is larger than the vertex 7.
The ruler body 4 is provided with a vernier scale mark 401, the vernier scale mark 401 leaks from the reading notch 201 and the measuring notch 101, the side wall of the measuring notch 101 is provided with a base scale mark 103, the upper side wall and the lower side wall of the measuring notch 101 are respectively provided with an inclined chamfer, and the base scale mark 103 is arranged on the inclined surface of the inclined chamfer of the lower side wall of the measuring notch 101.
The upper wall of the measuring base 1 is provided with a screw hole 102, the upper wall of the inner cylinder 2 is provided with a through hole 202, the screw hole 102 is coaxial with the through hole 202, a locking screw 3 is connected in the screw hole 102, and the lower end of the locking screw 3 is propped against the ruler body 4.
The one end that the blade 4 kept away from the movable probe rod 6 stretch out and measure base 1 and inner tube 2, the one end fixedly connected with handle 5 that blade 4 stretched out and measure base 1 and inner tube 2, handle 5 is including circular arc head 501 and straight shank 502, straight shank 502 welding is on blade 4, circular arc head 501 establishes the one end that blade 4 was kept away from at straight shank 502.
When the utility model is used, a measuring point is selected, the locking screw 3 is unscrewed, the measuring base 1 is held by hand, the lower end of the supporting block 8 is propped against the outer diameter of the generator guard ring, the top end of the static contact 9 is propped against the inner wall of the stator core of the generator, the ruler body 4 is held by hand, the ruler body 4 is slid to enable the movable probe 6 to drive the movable contact 7 to move, the movable contact 7 is driven to move by the movable probe 4, the movable contact 7 moves towards the electronic rotor and is connected with the electronic rotor in parallel by the arrangement of the arc bent pipe part of the inner cylinder 2, the reading is read through the vernier scale mark 401 and the base scale mark 103 after the locking screw 3 is screwed, a new measuring point is selected after the reading is recorded, the operation is repeated, the reading is recorded, finally, the position of the large motor rotor is adjusted through the measuring reading of multiple points, and the multiple-point measurement is carried out until the gap adjustment is completed after the multiple-point reading is consistent.
The setting of the vernier graduation mark 401 and the base graduation mark 103 is more convenient for determining the position of the ruler body 4, so that the use precision of the ruler is better; the base graduation mark 103 is arranged on the inclined plane of the inclined chamfer of the lower side wall of the measuring groove 101, so that the utility model can conveniently read the reading; the supporting block 8 provides a foundation for measuring different points, so that measurement errors caused by inconsistent horizontal and front and rear positions of the measurement base 1 during measuring of different points are effectively prevented; the locking screw 3 is used for locking the position of the ruler body 4, so that the influence of the change of the position of the ruler body 4 on the measurement accuracy during reading is prevented; the handle 5 is convenient for operating the ruler body 4, the circular arc head 501 is more convenient for holding, and the comfort of use is improved; the arc surface at the upper end of the straight rod 902 can be better matched with the inner wall of the stator core of the generator, so that the measurement accuracy is further improved; the supporting block 8 with the angular section enables the bottom end of the supporting block 8 to form line contact with the outer diameter of the generator guard ring, so that the accuracy of measurement is further improved; the carbon spring steel wire ensures the smooth sliding of the movable probe rod 6, the top outer diameter of the inverted conical moving contact 7 is larger than the inner diameter of the inner cylinder 2, the moving contact 7 is effectively prevented from retreating into the inner cylinder 2, and the use convenience is improved.
It should be noted that, in order to show the structures of the moving probe rod 6 and the inner cylinder 2 in the drawings of the present utility model, the outer diameter of the moving probe rod 6 is set to be smaller, and in order to ensure that the moving probe rod 6 can slide smoothly in the inner cylinder 2 during actual use, especially ensure that the moving probe rod 6 slides smoothly in the arc-shaped bent pipe portion of the inner cylinder 2, the outer diameter of the moving probe rod 6 needs to be set to be slightly smaller than the inner diameter of the inner cylinder 2, the sliding is not smooth due to the outer diameter of the moving probe rod 6 in the past, and the guiding effect is lost due to the outer diameter of the moving probe rod 6 being too small.
Claims (10)
1. A generator stator and rotor clearance measurer is characterized in that: the measuring device comprises a measuring base (1), wherein the measuring base (1) is a cylinder with a rectangular cross section, a measuring notch (101) is formed in one side surface of the measuring base (1), the measuring notch (101) is a rectangular groove, the measuring notch (101) penetrates through the measuring base (1) in the length direction, an inner cylinder (2) is fixedly connected in the measuring base (1), the inner cylinder (2) is a cylinder with a rectangular cross section, the rear end of the inner cylinder (2) is flush with the rear end of the measuring base (1), the front end of the inner cylinder (2) extends out of the measuring base (1), an arc bent pipe part is arranged at the front end of the inner cylinder (2), and the arc bent pipe part is a downward 90-degree quarter arc; a reading groove (201) is formed in one side wall of the rear end of the inner barrel (2), and the reading groove (201) is a rectangular groove; the reading notch (201) is communicated with the measurement notch (101), a ruler body (4) is connected in the inner barrel (2) in a sliding mode, a movable probe rod (6) is fixedly connected to the front end of the ruler body (4), a moving contact (7) is arranged at the front end of the movable probe rod (6), the moving contact (7) extends out of an arc bent pipe portion at the front end of the inner barrel (2), and a fixed contact (9) is fixedly connected to the upper portion of the front end of the inner barrel (2).
2. The generator stator and rotor clearance gauge of claim 1, wherein: the ruler body (4) is provided with a vernier scale mark (401), the vernier scale mark (401) leaks from the reading notch (201) and the measuring notch (101), and the side wall of the measuring notch (101) is provided with a base scale mark (103).
3. The generator stator and rotor clearance gauge of claim 2, wherein: the upper side wall and the lower side wall of the measurement notch (101) are respectively provided with an inclined chamfer, and base graduation marks (103) are arranged on the inclined planes of the inclined chamfers of the lower side wall of the measurement notch (101).
4. A generator stator and rotor clearance gauge according to claim 3, wherein: the inner cylinder (2) stretches out the lateral wall bottom fixedly connected with supporting shoe (8) of measuring base (1), supporting shoe (8) are connected in the half department of inner cylinder (2) length.
5. The generator stator and rotor clearance gauge of claim 4, wherein: the measuring base (1) upper wall be equipped with screw (102), inner tube (2) upper wall be equipped with through-hole (202), screw (102) and through-hole (202) coaxial, screw (102) in-connection have locking screw (3), locking screw (3) lower extreme top is connected on blade (4).
6. The generator stator and rotor clearance gauge of claim 5, wherein: one end of the ruler body (4) far away from the movable probe rod (6) extends out of the measuring base (1) and the inner cylinder (2), and one end of the ruler body (4) extending out of the measuring base (1) and the inner cylinder (2) is fixedly connected with a handle (5).
7. The generator stator and rotor clearance gauge of claim 6, wherein: the handle (5) comprises an arc head (501) and a straight shank (502), the straight shank (502) is welded on the ruler body (4), and the arc head (501) is arranged at one end of the straight shank (502) far away from the ruler body (4).
8. The generator stator and rotor clearance gauge of claim 7, wherein: the static contact (9) comprises a cross rod (901) and a straight rod (902), wherein the straight rod (902) is fixedly connected to the top surface of the cross rod (901), an included angle of 90% is formed between the cross rod (901) and the straight rod (902), the upper end of the straight rod (902) is an arc surface, and the arc surface at the upper end of the straight rod (902) is propped against the inner wall of the stator core of the generator.
9. The generator stator and rotor clearance gauge of claim 4, wherein: the cross section of the supporting block (8) is triangular, the bottom surface of the triangle of the supporting block (8) is welded on the bottom wall of the inner cylinder (2), and the vertex of the triangle of the supporting block (8) is propped against the outer diameter of the generator guard ring.
10. The generator stator and rotor clearance gauge according to any one of claims 1-9, wherein: the movable probe rod (6) is made of carbon spring steel wires, the movable contact (7) is in an inverted conical shape with the vertex downward, the vertex of the lower end of the inverted conical movable contact (7) is propped against the outer wall of the generator rotor, and the outer diameter of the top of the inverted conical movable contact (7) is larger than the inner diameter of the inner cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320775300.1U CN219433975U (en) | 2023-04-11 | 2023-04-11 | Generator stator and rotor clearance measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320775300.1U CN219433975U (en) | 2023-04-11 | 2023-04-11 | Generator stator and rotor clearance measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433975U true CN219433975U (en) | 2023-07-28 |
Family
ID=87330782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320775300.1U Active CN219433975U (en) | 2023-04-11 | 2023-04-11 | Generator stator and rotor clearance measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219433975U (en) |
-
2023
- 2023-04-11 CN CN202320775300.1U patent/CN219433975U/en active Active
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