CN210198415U - Stator clamping device of rotary transformer test equipment - Google Patents
Stator clamping device of rotary transformer test equipment Download PDFInfo
- Publication number
- CN210198415U CN210198415U CN201921551108.4U CN201921551108U CN210198415U CN 210198415 U CN210198415 U CN 210198415U CN 201921551108 U CN201921551108 U CN 201921551108U CN 210198415 U CN210198415 U CN 210198415U
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- stator
- mounting plate
- rotary transformer
- pressing block
- connecting rod
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Abstract
The utility model discloses a stator clamping device of a rotary transformer testing device, which comprises a horizontal mounting plate and a stator bracket fixed on the top surface of the mounting plate, wherein coaxial via holes are formed on the mounting plate and the stator bracket; the mounting plate is further fixedly provided with an air cylinder with a piston rod extending upwards, a horizontal connecting rod is fixedly arranged on the piston rod of the air cylinder, and a pressing block is fixedly arranged on the connecting rod and is positioned right above the stator support. In actual use, the air cylinder is used for driving the pressing block to downwards press the stator of the rotary transformer on the stator support, so that axial movement of the stator can be effectively limited, especially for the rotary transformer with the smaller self-weight of the stator, axial and circumferential positioning can be effectively carried out on the stator, micro-motion in the test process of the rotary transformer caused by stator displacement is avoided, and the angle error of a rotary transformer product is effectively reduced. And the air cylinder on the mounting plate and the pressing device formed by the connecting rod and the pressing block connected with the air cylinder are simple in structure and very convenient to use.
Description
Technical Field
The utility model belongs to the technical field of the resolver test, specifically say, in particular to resolver test equipment's stator clamping device.
Background
The rotary transformer is a precise angle, position and speed detecting device, under the excitation of excitation voltage with certain amplitude and frequency, the output voltage of the rotary transformer changes along with the angular displacement of the rotor, and the amplitude of the output voltage and the rotor angle form sine and cosine function relations or form linear relations with the rotor angle in a certain angle range. For the resolver, it is very important to detect and locate its linear angular range and the electrical performance parameters of the tester.
Because the stator has certain dead weight, traditional resolver test equipment all does not set up dedicated structure and carries on spacingly to the axial float of stator, and this just causes the angle of resolver product and all has the error of tens of minutes to several seconds, and especially the little resolver error of stator dead weight is great. Some testing equipment is also provided with a device for limiting the axial movement of the stator, but the testing equipment has the problems of complex structure and inconvenience in testing.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a resolver test equipment's stator clamping device makes its structure simpler, use more convenient, in order to do benefit to reduction resolver's angle error.
The above technical purpose of the present invention can be achieved by the following technical solutions: a stator clamping device of rotary transformer testing equipment comprises a horizontal mounting plate and a stator bracket fixed on the top surface of the mounting plate, wherein coaxial through holes are formed in the mounting plate and the stator bracket; the mounting plate is further fixedly provided with an air cylinder with a piston rod extending upwards, a horizontal connecting rod is fixedly arranged on the piston rod of the air cylinder, and a pressing block is fixedly arranged on the connecting rod and is positioned right above the stator support.
The utility model discloses an installation cylinder on the stator support mounting panel, utilize cylinder drive briquetting to compress tightly the resolver stator on stator support downwards in the in-service use, can restrict the axial float of stator effectively, especially to the less resolver of stator dead weight, can carry out axial and circumference location to the stator effectively, avoid because the stator displacement causes the appearance fine motion in the resolver test procedure, reduced the angle error of resolver product effectively. And the air cylinder on the mounting plate and the pressing device formed by the connecting rod and the pressing block connected with the air cylinder are simple in structure and very convenient to use.
The rubber foot pad pressing device is characterized by further comprising at least two rubber foot pads matched with the pressing block and located below the pressing block, and the pressing block applies force downwards to press the rubber foot pads downwards. The arrangement of the rubber foot pad can increase the friction between the rubber foot pad and the stator, so that the stator is positioned more stably and reliably; and the pressing block and the stator are flexibly compressed, so that the stator is prevented from being damaged.
The pressing block is in a long strip shape, and two strip-shaped gaps which are positioned on the same straight line are formed at two ends of the pressing block; rubber foot pad and bar breach one-to-one have arranged two, at each the upper end of rubber foot pad all is connected with the guide arm that stretches into corresponding bar breach. The distance between the two rubber foot pads can be conveniently adjusted, so that the stators of the rotary transformers with different specifications can be compressed, the application range of the testing equipment is wider, and the testing equipment can be used for testing the rotary transformers with the diameters ranging from 25 mm to 165 mm.
The pressure block is fixed on the connecting rod through a vertical adjusting rod, the lower end of the adjusting rod is inserted into the pressure block and fixed, the upper end of the adjusting rod is inserted into a through hole correspondingly arranged on the connecting rod, a transverse screw is inserted on the connecting rod, and the adjusting rod and the connecting rod are compressed and fixed at the inner end of the screw. The adjusting rod is arranged, so that the height position of the pressing block can be conveniently adjusted, the pressing block is favorable for compressing stators of rotary transformers of different specifications by adopting small-specification air cylinders, the structure of the device is simple and compact, and the application range of the testing device is enlarged.
The mounting plate, the stator bracket, the connecting rod, the adjusting rod and the pressing block are all made of nonmagnetic metal materials. The stator clamping device is prevented from influencing the testing of the rotary transformer.
The upper end of the stator support is provided with a two-stage step surface coaxial with the via hole, the upper end of the stator support is provided with two strip-shaped grooves positioned on the same horizontal straight line, the connecting line of the two strip-shaped grooves penetrates through the center of the via hole, the inner ends of the two strip-shaped grooves penetrate through the via hole of the stator support, and the outer ends of the two strip-shaped grooves penetrate through the peripheral side surface of the stator support; the groove bottom of one of the strip-shaped grooves is higher than the step surface of the first level above the stator support, and the groove bottom of the other strip-shaped groove is flush with and communicated with the step surface of the first level below the stator support. Step surface and the bar groove on the stator support can carry out circumference spacing to rotary transformer's stator, further ensure that the stator location is reliable and stable.
Preferably, the mounting plate and the peripheral side wall of the stator frame are each cylindrical.
Has the advantages that: the utility model discloses an installation cylinder on the stator support mounting panel, fixed connection pole and briquetting on cylinder piston rod to a simple structure, convenient to use, to the stator clamping device of the reliable and stable rotary transformer test equipment in stator location are provided, rotary transformer's angle error has been reduced effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of the internal structure of fig. 1.
Fig. 4 is a perspective view of the stator frame of fig. 1.
Fig. 5 is a usage status diagram of an embodiment of the present invention.
Reference numerals: mounting panel 1, cylinder 2, connecting rod 3, stator support 4, via hole 4a, bar groove 4b, step face 4c, rubber foot pad 5, guide arm 5a, briquetting 6, bar breach 6a, regulation pole 7, stator 8.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the present embodiment provides a stator clamping device of a resolver testing apparatus, which includes a horizontal mounting plate 1 and a stator bracket 4 fixed on the top surface of the mounting plate 1, and coaxial through holes 4a are formed in the mounting plate 1 and the stator bracket 4. The upper end of the stator support 4 is provided with a two-stage annular step surface 4c coaxial with the via hole 4a, the upper end of the stator support 4 is provided with two strip-shaped grooves 4b positioned on the same horizontal straight line, a connecting line of the two strip-shaped grooves 4b penetrates through the center of the via hole 4a, the inner ends of the two strip-shaped grooves 4b penetrate through the via hole 4a of the stator support 4, and the outer ends of the two strip-shaped grooves 4b penetrate through the peripheral side surface of the stator support 4. The groove bottom of one of the strip-shaped grooves 4b is higher than the step surface 4c of the first level above the stator support 4, and the groove bottom of the other strip-shaped groove 4b is flush with and is communicated with the step surface 4c of the first level below the stator support 4.
As shown in fig. 1, 2 and 3, an air cylinder 2 with a piston rod extending upwards is further fixed on the mounting plate 1, a horizontal connecting rod 3 is fixed on the piston rod of the air cylinder 2, a pressing block 6 is fixed on the connecting rod 3, and the pressing block 6 is located right above the stator support 4. The pressing block 6 is fixed on the connecting rod 3 through a vertical adjusting rod 7, the lower end of the adjusting rod 7 is inserted into the pressing block 6 and fixed, the upper end of the adjusting rod 7 is inserted into a through hole 4a correspondingly arranged on the connecting rod 3, a transverse screw (not shown in the drawing) is inserted into the connecting rod 3, and the adjusting rod 7 and the connecting rod 3 are pressed and fixed by the inner end of the screw.
As shown in fig. 1 and 3, the present embodiment further includes at least two rubber feet 5, which are located below the pressing block 6, and are engaged with the pressing block 6, and the pressing block 6 applies a downward force to press down the rubber feet 5. The pressing block 6 is in a long strip shape, and two strip-shaped gaps 6a located on the same straight line are formed at two ends of the pressing block 6. Rubber foot pad 5 has arranged two with bar breach 6a one-to-one, at each the upper end of rubber foot pad 5 all is connected with the guide arm 5a that stretches into corresponding bar breach 6 a.
As shown in fig. 5, in actual use, the stator 8 is placed in the stator support 4 and supported by the step surface 4c, and the air cylinder 2 drives the pressing block to press the rubber foot pad 4 downwards against the stator 8, so that the stator 8 can be positioned, and axial and circumferential movement is avoided.
As shown in fig. 2, the peripheral side walls of the mounting plate 1 and the stator frame 4 are cylindrical. The mounting plate 1, the stator bracket 4, the connecting rod 3, the adjusting rod 7 and the pressing block 6 are all made of nonmagnetic metal materials.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a resolver test equipment's stator clamping device which characterized by: the device comprises a horizontal mounting plate and a stator bracket fixed on the top surface of the mounting plate, wherein coaxial through holes are formed in the mounting plate and the stator bracket;
the mounting plate is further fixedly provided with an air cylinder with a piston rod extending upwards, a horizontal connecting rod is fixedly arranged on the piston rod of the air cylinder, and a pressing block is fixedly arranged on the connecting rod and is positioned right above the stator support.
2. The stator clamping device of the rotary transformer testing equipment as claimed in claim 1, wherein: the rubber foot pad pressing device is characterized by further comprising at least two rubber foot pads matched with the pressing block and located below the pressing block, and the pressing block applies force downwards to press the rubber foot pads downwards.
3. The stator clamping device of the rotary transformer testing equipment as claimed in claim 2, wherein: the pressing block is in a long strip shape, and two strip-shaped gaps which are positioned on the same straight line are formed at two ends of the pressing block; rubber foot pad and bar breach one-to-one have arranged two, at each the upper end of rubber foot pad all is connected with the guide arm that stretches into corresponding bar breach.
4. The stator clamping device of the rotary transformer testing equipment as claimed in claim 1, wherein: the pressure block is fixed on the connecting rod through a vertical adjusting rod, the lower end of the adjusting rod is inserted into the pressure block and fixed, the upper end of the adjusting rod is inserted into a through hole correspondingly arranged on the connecting rod, a transverse screw is inserted on the connecting rod, and the adjusting rod and the connecting rod are compressed and fixed at the inner end of the screw.
5. The stator clamping device of the rotary transformer testing equipment as claimed in claim 4, wherein: the mounting plate, the stator bracket, the connecting rod, the adjusting rod and the pressing block are all made of nonmagnetic metal materials.
6. The stator clamping device of the rotary transformer testing equipment as claimed in claim 1, wherein: the upper end of the stator support is provided with a two-stage step surface coaxial with the via hole, the upper end of the stator support is provided with two strip-shaped grooves positioned on the same horizontal straight line, the connecting line of the two strip-shaped grooves penetrates through the center of the via hole, the inner ends of the two strip-shaped grooves penetrate through the via hole of the stator support, and the outer ends of the two strip-shaped grooves penetrate through the peripheral side surface of the stator support; the groove bottom of one of the strip-shaped grooves is higher than the step surface of the first level above the stator support, and the groove bottom of the other strip-shaped groove is flush with and communicated with the step surface of the first level below the stator support.
7. The stator clamping device of the rotary transformer testing equipment as claimed in claim 6, wherein: the peripheral side walls of the mounting plate and the stator support are both cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551108.4U CN210198415U (en) | 2019-09-17 | 2019-09-17 | Stator clamping device of rotary transformer test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551108.4U CN210198415U (en) | 2019-09-17 | 2019-09-17 | Stator clamping device of rotary transformer test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210198415U true CN210198415U (en) | 2020-03-27 |
Family
ID=69878514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921551108.4U Expired - Fee Related CN210198415U (en) | 2019-09-17 | 2019-09-17 | Stator clamping device of rotary transformer test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210198415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815981A (en) * | 2021-01-18 | 2021-05-18 | 北京科技大学 | Rotary transformer test fixture based on high-precision rotary table |
-
2019
- 2019-09-17 CN CN201921551108.4U patent/CN210198415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815981A (en) * | 2021-01-18 | 2021-05-18 | 北京科技大学 | Rotary transformer test fixture based on high-precision rotary table |
| CN112815981B (en) * | 2021-01-18 | 2022-04-08 | 北京科技大学 | Rotary transformer test fixture based on high-precision rotary table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20200917 |