CN214502324U - V-shaped generator set air gap synchronous measuring gauge - Google Patents
V-shaped generator set air gap synchronous measuring gauge Download PDFInfo
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- CN214502324U CN214502324U CN202120897669.0U CN202120897669U CN214502324U CN 214502324 U CN214502324 U CN 214502324U CN 202120897669 U CN202120897669 U CN 202120897669U CN 214502324 U CN214502324 U CN 214502324U
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Abstract
The utility model relates to a power station generating set overhauls the field, V type generating set air gap synchronous measurement rule promptly for generator air gap precision measurement. It comprises a rod sleeve, a rotatable rod core is arranged in the rod sleeve; the rod sleeve is externally sleeved with a hook device which drives the rod core to rotate; a handle is sleeved on the rod sleeve at the rear part of the handle hooking device; the front end of the rod sleeve is provided with a front end movable measuring head and a front end fixed measuring head which are connected in an abutting mode, and the rear end of the rod sleeve is provided with a rear driven measuring head and a rear fixed measuring head which are connected in an abutting mode; the front end fixed measuring head and the rear portion fixed measuring head are connected with the rod sleeve, and the front end movable measuring head and the rear portion driven measuring head are connected with the rod core; the rear end of the rod sleeve is provided with a bracket, and the bracket is provided with a dial indicator; the rear driven measuring head is connected with the dial indicator. Simple and reasonable structure and reliable measurement precision.
Description
Technical Field
The utility model relates to a power station generating set overhauls the field, V type generating set air gap synchronous measurement rule promptly for generator air gap precision measurement.
Background
In the prior art, generator air gap measurement is a very important and tedious work in generator set maintenance, an existing tool is a wood wedge ruler, chalk and a caliper ruler which are matched for use, one wood wedge ruler is selected according to the expected generator air gap range during measurement, chalk powder is coated on the inclined surface of the wood wedge ruler, the wood wedge ruler is inserted into an iron core in the generator air gap to be clamped tightly, a trace is pressed out, and the thickness of the trace is measured by the caliper ruler after the trace is drawn out, so that the gap value of the point is obtained. The disadvantages are that: the indirect measurement error is great, and the dynamics of compressing tightly is different, and numerical value change is great, and if the iron core upper edge had high point to shelter from then can't measure, and it is comparatively loaded down with trivial details to add the measurement of compensation piece, and the precision is not high, measures dozens of points of round, expends time. The electronic clearance gauge is only suitable for exposed clearance measurement, and the electronic clearance gauge cannot be inserted into the iron core for measurement due to design structure reasons such as the fact that the upper edge of the stator iron core of the generator and the upper edge of the rotor magnetic pole are provided with parts higher than each other. The existing generator air gap measuring tool is low in precision and complex in operation, and if the upper edge of a stator and rotor iron core is shielded by a high point, the measuring work is very troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the aforesaid not enough and provide a simple structure, guarantee measurement accuracy's V type generating set air gap synchronous measuring rule.
The technical solution of the utility model is that: the V-shaped generator set air gap synchronous measuring gauge is characterized by comprising a rod sleeve, wherein a rotatable rod core is arranged in the rod sleeve; the rod sleeve is externally sleeved with a hook device which drives the rod core to rotate; a handle is sleeved on the rod sleeve at the rear part of the handle hooking device; the front end of the rod sleeve is provided with a front end movable measuring head and a front end fixed measuring head which are connected in an abutting mode, and the rear end of the rod sleeve is provided with a rear driven measuring head and a rear fixed measuring head which are connected in an abutting mode; the front end fixed measuring head and the rear portion fixed measuring head are connected with the rod sleeve, and the front end movable measuring head and the rear portion driven measuring head are connected with the rod core; the rear end of the rod sleeve is provided with a bracket, and the bracket is provided with a dial indicator; the rear driven measuring head is connected with the dial indicator.
In the above-mentioned scheme, the first step of the method,
the hook hand device comprises a sleeve connected with the rod sleeve in an outer wrapping mode, the sleeve is provided with a protruding hook hand, a sliding block is arranged in the hook hand and is connected with the straight groove of the rod sleeve in a sliding mode, and meanwhile the sliding block is connected with the spiral groove of the rod core in a sliding mode.
The middle of the bracket is provided with a sliding groove, and the salient points on the driven measuring head at the rear part are connected with the measuring rod of the dial indicator in a sliding way.
The utility model has the advantages that: 1. the two pairs of measuring heads are connected by utilizing the rod sleeve and the rod core, so that the two pairs of measuring heads synchronously move in a V shape to open and close by 0-60 degrees, the measuring heads at the front end and the rear end move consistently, the distance between the measuring heads is consistent, the measuring head at the rear end is connected with hundreds of percent measurement, the original size of the pair of measuring heads is the space size measured by the measuring head at the front end, the structure is simple and reasonable, and the measuring precision is reliable. 2. The measuring tool can extend into an internal space with a blocked port to perform precision measurement, has a simple structure, small error, large measuring range of a single tool, visual display of measured data on a dial indicator and simple operation, and can manufacture the length of a measuring head according to the measuring range. The generator air gap measuring process can replace the traditional generator air gap measuring process of a wooden wedge ruler, a caliper, chalk and the like. 3. The measuring tool is simple, convenient, fast and accurate, can avoid high-point interference at the upper end of an iron core, can directly measure the position of the iron core, has the precision of 0.01mm, can be operated by a worker conveniently, and can meet the requirements of various unit air gap measuring ranges by one tool.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic diagram of a front end movable probe.
Fig. 3 is a schematic left view of fig. 2.
FIG. 4 is a schematic view of a front end fixed head configuration.
Fig. 5 is a schematic left view of fig. 4.
Fig. 6 is a schematic diagram of a rear fixed probe structure.
Fig. 7 is a schematic left view of fig. 6.
Fig. 8 is a schematic diagram of the rear driven stylus.
Fig. 9 is a schematic left side view of fig. 8.
Figure 10 is a schematic view of a rod core construction.
Figure 11 is a schematic view of a sleeve construction.
Fig. 12 is a schematic view of the structure of the hook device.
Figure 13 is a simplified diagram of a bracket structure.
Fig. 14 is a schematic left side view of fig. 13.
Fig. 15 is a schematic view from the right of fig. 1.
Detailed Description
Referring to fig. 1-15, the part names are as follows: the measuring head comprises a front end movable measuring head 1, a front end fixed measuring head 2, a rear portion driven measuring head 3, a rear portion fixed measuring head 4, a rod sleeve 5, a rod core 11, a hook 6, a handle 7, a bracket 8, a dial indicator 9, a reset spring 10, salient points 11, a spiral groove 12, a straight groove 13, a sliding block 14, a sleeve 15, a sliding groove 16, a rotating shaft 17, a dial indicator sleeve 18, a fixed dial indicator screw hole 19 and a rotating shaft 20.
Referring to fig. 1-2, the air gap synchronous measuring gauge of the V-type generator set comprises a rod sleeve 5, wherein a rotatable rod core 11 is arranged in the rod sleeve 5; the rod sleeve 5 is externally sleeved with a hook device which drives the rod core 11 to rotate; the rod sleeve 5 at the rear part of the hook device is provided with a handle 7; the front end of the rod sleeve 5 is provided with a front end movable measuring head 1 and a front end fixed measuring head 2 which are connected in an abutting mode, and the rear end of the rod sleeve 5 is provided with a rear driven measuring head 3 and a rear fixed measuring head 4 which are connected in an abutting mode; the front end fixed measuring head 2 and the rear portion fixed measuring head 4 are connected with the rod sleeve 5, and the front end movable measuring head 1 and the rear portion driven measuring head 3 are connected with the rod core 11; the rear end of the rod sleeve 5 is provided with a bracket 8, and the bracket 8 is provided with a dial indicator 9; the rear driven measuring head 3 is connected with a dial indicator 9.
Referring to fig. 2, 3, 4 and 5, the front end measuring head comprises a front end movable measuring head 1 and a front end fixed measuring head 2. The two half arcs are measuring contact points.
Referring to fig. 6, 7, 8 and 9, the rear measuring head comprises a rear driven measuring head 3, a rear fixed measuring head 4 and a rear driven measuring head 3 with a salient point 11. The width, length and radian are consistent with those of the front end measuring head, and the opening and closing size and the measuring point distance after synchronous action are ensured to be consistent with those of the front end.
Referring to fig. 10 and 11, the sliding block 14 in the hook 6 is slidably connected with the straight groove 13 of the rod sleeve 5, and the sliding block 14 is also slidably connected with the spiral groove 12 of the rod core 11. The rod core 11 is arranged in the rod sleeve 5, two ends of the rod core are respectively connected with a measuring head, and the rod core 11 can rotate in the rod sleeve 5 to realize synchronous rotation of the measuring heads at the two ends.
Referring to fig. 12, the hook device comprises a sleeve 15 connected with the outside of the rod sleeve 5, the sleeve 15 is provided with a protruding hook 6, a sliding block 14 is arranged in the hook 6, the sliding block 14 is connected with a straight groove 13 of the rod sleeve 5 in a sliding manner, and meanwhile, the sliding block 14 is also connected with a spiral groove 12 of the rod core 11 in a sliding manner, so that the rod core 11 can rotate at an angle of 0-60 degrees.
Referring to fig. 13 and 14, a sliding groove 16 is formed in the middle of the bracket 8, and the salient point 11 on the rear driven measuring head 3 is connected with the measuring rod of the dial indicator in a sliding mode in the sliding groove 16. The lower end is provided with a fixed dial indicator sleeve 18, the salient point 11 of the rear driven measuring head 3 can slide in the sliding groove 16, the measuring rod of the dial indicator and the circle centers of the head parts of the two measuring heads are always kept on the same straight line, and the reading of the dial indicator 9 is guaranteed to be the opening and closing size of the measuring head.
The transmission principle is as follows: referring to fig. 1 and 15, the principle of synchronous opening of two pairs of measuring heads with the same length and width is utilized, the two measuring heads at the front end (a front end movable measuring head 1 and a front end fixed measuring head 2) and the two measuring heads at the rear part (a rear part driven measuring head 3 and a rear part fixed measuring head 4) are respectively connected by a rod sleeve 5 and a rod core 11 in 90 degrees, namely, the rear part driven measuring head 3 at the rear part of the front end movable measuring head 1 at the front end is connected by the rod core 11 in 90 degrees, the front end fixed measuring head 2 is connected with the rear part fixed measuring head 4 by the rod sleeve 5, so that the front and rear two pairs of measuring heads synchronously act, the spread angle and distance of the front measuring head are consistent with the spread angle and distance of the rear measuring head, a dial indicator 9 is arranged on a rear bracket 8, the separation distance of the rear measuring head can be indirectly measured, the space size of the front measuring head in a space to be measured, the rear bracket 8 is provided with a sliding orientation mechanism, so that the circle centers of the measuring rod and the two measuring heads of the dial indicator 9 are always kept on a straight line, the measuring point distance of two measuring heads is ensured to be the measured value of the dial indicator 9, a sliding block 14 is arranged in the hook hand 6, the sliding block 14 slides in a straight groove 13 of the rod sleeve 5 and also slides in a spiral groove 12 of the rod core 11, fingers exert force on the hook hand 6, the rod core 11 drives the movable measuring heads at two ends to rotate in the sliding process of the hook hand 6, the hook hand 6 is loosened after the measurement is finished, and the measuring heads are combined by resilience of a hook hand reset spring 10.
The working process is as follows: referring to fig. 1-15, before the tool is used, the measuring heads are combined, the reading of the correcting dial indicator 9 is "0", when the tool is closed, the size is small, the front end of the measuring tool extends into a generator space gap by the handle 7 of the hand-held tool, when the front end measuring head reaches the space between the magnetic pole iron core and the stator iron core, the rotary hook 6 can be operated to enable the front and the rear two pairs of measuring heads to be separated by 0-60 degrees in a V shape, the front end two measuring heads are respectively contacted with the stator iron core and the magnetic pole iron core, and the separation angle of the front end measuring head is consistent with the separation angle of the rear measuring head, so that the reading of the dial indicator 9 is seen, and the original width of the pair of measuring heads is the absolute value of the gap. A reset spring 10 is arranged behind the rotary hook 6, the measuring head can automatically rebound to 0 position when the hook 6 is released and does not exert force, two top ends of the measuring head at the front end respectively contact the magnetic pole iron core and the stator iron core, the rear dial indicator 9 synchronously measures the separating distance of the measuring head at the rear end, and the original thickness of a pair of measuring heads is the absolute value of the air gap.
The above description is only exemplary of the present invention, and the various illustrations do not limit the essence of the present invention.
Claims (3)
- The V-shaped generator set air gap synchronous measuring gauge is characterized by comprising a rod sleeve (5), wherein a rotatable rod core (11) is arranged in the rod sleeve (5); the rod sleeve (5) is externally sleeved with a hook device which drives the rod core (11) to rotate; a handle (7) is arranged on the rod sleeve (5) at the rear part of the hook device; the front end of the rod sleeve (5) is provided with a front end movable measuring head (1) and a front end fixed measuring head (2) which are connected in an abutting mode, and the rear end of the rod sleeve (5) is provided with a rear driven measuring head (3) and a rear fixed measuring head (4) which are connected in an abutting mode; the front end fixed measuring head (2), the rear part fixed measuring head (4) and the rod sleeve (5) are connected, and the front end movable measuring head (1) and the rear part driven measuring head (3) are connected with the rod core (11); a bracket (8) is arranged at the rear end of the rod sleeve (5), and a dial indicator (9) is arranged on the bracket (8); the rear driven measuring head (3) is connected with a dial indicator (9).
- 2. The V-type generator set air gap synchronous measuring gauge according to claim 1, characterized in that the hitching means comprises a sleeve (15) connected with the outside of the rod sleeve (5), the sleeve (15) is provided with a protruding hitching hand (6), a sliding block (14) is arranged in the hitching hand (6), the sliding block (14) is connected with the straight groove (13) of the rod sleeve (5) in a sliding way, and the sliding block (14) is also connected with the spiral groove (12) of the rod core (11) in a sliding way.
- 3. The V-type generating set air gap synchronous measuring gauge according to claim 1 or 2, characterized in that a sliding groove (16) is formed in the middle of the bracket (8), and salient points on the rear driven measuring head (3) are connected with a measuring rod of a dial indicator in a sliding manner in the sliding groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120897669.0U CN214502324U (en) | 2021-04-28 | 2021-04-28 | V-shaped generator set air gap synchronous measuring gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120897669.0U CN214502324U (en) | 2021-04-28 | 2021-04-28 | V-shaped generator set air gap synchronous measuring gauge |
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| Publication Number | Publication Date |
|---|---|
| CN214502324U true CN214502324U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120897669.0U Active CN214502324U (en) | 2021-04-28 | 2021-04-28 | V-shaped generator set air gap synchronous measuring gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865468A (en) * | 2021-11-16 | 2021-12-31 | 国网四川省电力公司映秀湾水力发电总厂 | Special dipperstick of motor stator rotor air gap |
-
2021
- 2021-04-28 CN CN202120897669.0U patent/CN214502324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865468A (en) * | 2021-11-16 | 2021-12-31 | 国网四川省电力公司映秀湾水力发电总厂 | Special dipperstick of motor stator rotor air gap |
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