CN214481897U

CN214481897U - Instrument detection device for fault detection of PMSM drive system

Info

Publication number: CN214481897U
Application number: CN202120731813.3U
Authority: CN
Inventors: 宁亮; 殷智祺; 王蕾; 刘锐; 朱小明; 徐凯; 姜鲲; 王鹏涛; 王慧; 张旭月; 张旭龙; 李晓东; 马腾龙
Original assignee: Henan Special Equipment Inspection Institute; Henan Institute of Metrology
Current assignee: Henan Special Equipment Inspection Institute; Henan Institute of Metrology
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-10-22
Anticipated expiration: 2031-04-12

Abstract

The utility model particularly relates to an instrument detection device for fault detection of a PMSM (permanent magnet synchronous motor) driving system, which comprises two symmetrically distributed supporting plates, wherein a rotatable rotating box is arranged between the two supporting plates, a connecting panel is arranged on the rotating box, a rectangular hole is arranged at the middle part of the rotating box, a clamping mechanism is arranged in the rectangular hole, and two slidable connecting mechanisms are arranged on the lower surfaces of the supporting plates; the utility model discloses can adapt to the digital display instrument of different link distances, and be connected the link and the connection panel of digital display instrument, check out test set only need with the detection line be connected with corresponding connection panel's connecting hole can, can be more convenient carry out the line detection to the digital display instrument, be provided with every link that can laminate more of telescopic thimble, avoid omitting the link, be provided with rotatable rotation case, can make the dial plate of digital display instrument rotate to surperficial or leading flank when detecting, can more audio-visual see the positive state of digital display instrument.

Description

Instrument detection device for fault detection of PMSM drive system

Technical Field

The utility model belongs to the technical field of instrument check out test set, in particular to PMSM is instrument detection device for driving system fault detection.

Background

The digital display instrument is often detected when a PMSM driving system is detected, the detection quantity is large, the digital display instruments of various types or sizes are involved, the detection speed of the traditional manual wiring is low, a large amount of time is wasted, the manual wiring has certain danger, and the traditional instrument test line has a broken circuit risk due to touch during testing, so that the detection effect is poor; in addition, in the whole detection process, the risk of disconnection of the wiring position is not good due to poor connection, the detection result is influenced, and the state of the dial plate cannot be observed more visually in the detection process due to the inconvenience of moving the digital display instrument after connection.

In order to solve the problems, the instrument detection device for detecting the faults of the PMSM driving system is provided, and the digital display instrument can be quickly connected and detected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of existence among the prior art and provide a PMSM is instrument detection device for the driving system fault detection.

The purpose of the utility model is realized like this: the utility model provides a PMSM is instrument detection device for driving system fault detection, includes the backup pad of two symmetric distributions, be provided with rotatable case that rotates between two backup pads, rotate and be provided with connection panel on the case, rotate the case inside and be provided with the rectangular hole, be provided with in the rectangular hole and add the mechanism of holding, the backup pad lower surface is provided with two slidable coupling mechanism.

Further, the clamping mechanism comprises a transverse electric cylinder, a longitudinal electric cylinder, a transverse pressure rod, a longitudinal pressure rod and an upper sliding block, lower slider, a controller, the battery is located and rotates the incasement, it has two lower spouts to rotate the inboard lower surface of case, it has two last spouts to rotate the inboard upper surface of case, horizontal electric jar and vertical electric jar respectively with rotate case fixed connection, horizontal electric jar output and horizontal depression bar right-hand member fixed connection, vertical electric jar output and vertical depression bar rear end fixed connection, two lower sliders of each fixed connection of horizontal depression bar both ends lower surface, two upper sliders of each fixed connection of vertical depression bar both ends upper surface, two lower sliders are slidable respectively and are located two lower spouts, two upper sliders are slidable respectively and are located two upper spouts, horizontal depression bar and vertical depression bar vertical cross distribution, horizontal depression bar is located vertical depression bar top.

Furthermore, the connecting mechanism comprises a limiting block, a bar-shaped rod, a fixing block, a connecting plate, a first fastening bolt, a second fastening bolt, a first spring, a nut, a threaded rod, a second fastening bolt, a thimble, a second spring, an electric wire and a moving block; the lower surface of the rotating box is provided with a first sliding chute, the first sliding chutes are respectively positioned on two sides of the rectangular hole, two ends of the bar-shaped rod are respectively provided with a threaded rod in a sliding manner, the lower end of the threaded rod is connected with the fixed block, a first spring is arranged between the fixed block and the bar-shaped rod, the first spring is sleeved on the threaded rod, the upper end of the threaded rod is provided with a nut, the limiting block is connected with the fixed block, the connecting plate is connected with the side surface of the fixed block, a first fastening bolt is arranged on the connecting plate, and the limiting block is positioned in the first sliding chute; a strip-shaped hole is formed in the strip-shaped rod, a plurality of moving blocks are slidably arranged in the strip-shaped hole, a thimble is arranged in each moving block in a vertically sliding manner, and a spring II is fixedly connected to the lower surface of the thimble; the lower part of the spring is connected with an electric wire, the other end of the electric wire is connected with the connecting panel, and the bottom of the moving block is provided with a second fastening bolt.

Furthermore, rectangular blocks are fixedly connected to the middle parts of the two ends of the rotating box respectively, rotating rods are fixedly connected to the outer side faces of the rectangular blocks, the rotating rods rotatably penetrate through the supporting plate, a rotating disc is fixedly arranged on the outer end face of each rotating rod, and a plurality of magnets I are uniformly arranged on the rotating disc; the outer side face of the supporting plate is fixedly provided with a limiting plate, the upper portion of the limiting plate is provided with an arc-shaped groove, a magnet II corresponding to the magnet I is arranged in the arc-shaped groove, and the rotary disc is rotatably located in the arc-shaped groove.

Further, a roller bearing is arranged between the supporting plate and the rotating rod.

Furthermore, a second sliding groove is formed in the moving block, the second sliding groove is in clearance fit with the bar-shaped rod, and the moving block can move along the bar-shaped rod.

When the utility model is used, the hand-held digital display instrument is placed in the rectangular hole, the controller controls the transverse electric cylinder and the longitudinal electric cylinder to respectively drive the transverse pressure rod and the longitudinal pressure rod to contract, the two sides of the rectangular hole are matched to realize the holding of the digital display instrument, and the rotating box is manually rotated to turn the held digital display instrument for 90 degrees or 180 degrees, so that the connection end on the digital display instrument is conveniently connected in a wiring way; when the rotating box rotates, the first magnet on the rotating disc is sequentially attracted with the second magnet, for example, four first magnets are uniformly arranged, the attraction of the two magnets is equivalent to the rotation of the rotating box by 90 degrees every time, and the first magnet and the second magnet are arranged to avoid the random rotation of the rotating box; affecting subsequent connection detection. After the digital display instrument is turned over, the position of the bar-shaped rod is moved, so that the thimble above the bar-shaped rod is the same as the longitudinal position of the digital display instrument, and the fastening bolt is screwed, so that the tail end of the fastening bolt presses the rotating box, the bar-shaped rod cannot move, and the position of the bar-shaped rod is fixed; moving the moving blocks on the bar-shaped rod along the bar-shaped rod to enable the ejector pins to be aligned with the connecting end on the digital display instrument, and screwing the second fastening bolt to enable the tail end of the second fastening bolt to press the bar-shaped rod, so that the moving blocks are fixed; the thimble on the bar-type pole is pressed to the link on the digital display instrument by screwing the nut again, the first spring is pressed, the second spring is pressed to shrink when the thimble contacts the link, the connection of the digital display instrument and the connection panel is completed, when the digital display instrument is required to be detected, the detection connection line can be inserted into the corresponding connection hole of the connection panel, and the problems that the link of the digital display instrument is inconvenient to be connected with the detection equipment and the connection is easy to loosen are solved.

Has the advantages that: the device can adapt to the digital display instrument of different link distances, and adapt to the digital display instrument of not unidimensional size, and be connected the link and the connection panel of digital display instrument, check out test set only need with the detection line be connected with corresponding connection panel's connecting hole can, can detect the digital display instrument more convenient, it can laminate every link more to be provided with the telescopic thimble, avoid omitting the link, be provided with rotatable rotation case, can make the dial plate of digital display instrument rotate to upper surface or leading flank when detecting, can more audio-visual see the positive state of digital display instrument.

Drawings

Fig. 1 is a schematic structural diagram of the utility model when assembled with a digital display instrument.

Fig. 2 is a partial structural sectional view of the support plate of the utility model.

Fig. 3 is a schematic view of a partial structure of the utility model.

Fig. 4 is a schematic structural view of the connection mechanism of the utility model.

Fig. 5 is a schematic structural view of the clamping mechanism of the present invention.

Fig. 6 is a schematic view of a partial structure of the connection mechanism of the present invention.

Fig. 7 is a schematic structural view of parts of the connection mechanism of the utility model.

Fig. 8 is a sectional view of the moving block of the present invention.

Description of reference numerals:

1. the device comprises a supporting plate, 2. a rotating box, 3. a digital display instrument, 4. a rectangular block, 5. a controller, 6. a connecting panel, 7. a limiting plate, 8. a second magnet, 9. a rotating disc, 10. a first magnet, 11. a bearing, 12. a second spring, 13. a rotating rod, 14. a connecting hole, 15. an electric wire, 16. a bar-shaped rod, 17. a threaded rod, 18. a nut, 19. a fixed block, 20. a first fastening bolt, 21. a connecting plate, 22. a first spring, 23. a first chute, 24. a bar-shaped hole, 25. a second fastening bolt, 26. a lower chute, 27. a longitudinal pressure rod, 28. an upper slide block, 29. a transverse pressure rod, 30. a longitudinal electric cylinder, 31. a transverse electric cylinder, 32. a storage battery, 33. a lower slide block, 34. a movable block, 35. a thimble, 36. a limiting block.

Detailed Description

Example 1, as shown in fig. 1 to 8, the object of the present invention is achieved by: the utility model provides a PMSM actuating system is instrument detection device for fault detection, is provided with rotatable case 2 that rotates including two symmetric distribution's backup pad 1 between two backup pads 1, rotates each fixedly connected with rectangular block 4 in 2 both ends middle parts of case, and 4 lateral surfaces fixedly connected with dwang 13 of rectangular block, the rotatable backup pad 1 that runs through of dwang 13 is provided with roller bearing 11 between backup pad 1 and the dwang 13. A rotating disc 9 is fixedly arranged on the outer end face of the rotating rod 13, the rotating disc 9 is of a cylindrical structure, and a plurality of magnets one 10, preferably four magnets one 10 are uniformly arranged on the outer side face of the rotating disc 9; the outer side surface of the supporting plate 1 is fixedly provided with a limiting plate 7, an arc-shaped groove is formed in the upper portion of the limiting plate 7, a second magnet 8 corresponding to the first magnet 10 is arranged in the arc-shaped groove, the rotary plate 9 is rotatably arranged in the arc-shaped groove, the first magnet 10 and the second magnet 8 are sequentially attracted to each other when the rotary plate 9 rotates, and the magnets can not be rotated when the stress of the rotary box 2 is smaller than the attraction force of the magnets. The rotating box 2 is provided with a connecting panel 6, the connecting panel 6 is provided with two rows of a plurality of connecting holes 14 which are uniformly distributed, and the connecting holes 14 are simple instrument switching holes in the prior art and are not described in detail; the middle part of the rotating box 2 is provided with a rectangular hole, a clamping mechanism is arranged in the rectangular hole, and the lower surface of the supporting plate 1 is provided with two slidable connecting mechanisms.

The clamping mechanism comprises a transverse electric cylinder 31, a longitudinal electric cylinder 30, a transverse pressure rod 29, a longitudinal pressure rod 27, an upper slide block 28, a lower slide block 33, a controller 5 and a storage battery 32, wherein the controller 5 is used for controlling the transverse electric cylinder 31 and the longitudinal electric cylinder 30, and the storage battery 32 supplies power to the transverse electric cylinder 31, the longitudinal electric cylinder 30 and the controller 5; the controller 5, the battery 32 is located and rotates the case 2, rotate the inboard lower surface of case 2 and seted up two lower chutes 26, rotate the inboard upper surface of case 2 and seted up two upper chutes, horizontal electric jar 31 and vertical electric jar 30 respectively with rotate case 2 fixed connection, horizontal electric jar 31 output and horizontal depression bar 29 right-hand member fixed connection, vertical electric jar 30 output and vertical depression bar 27 rear end fixed connection, horizontal depression bar 29 both ends lower surface respectively fixed connection has two lower sliders 33, vertical depression bar 27 both ends upper surface respectively fixed connection has two upper sliders 28, two lower sliders 33 are slidable respectively and are located two lower chutes 26, two upper sliders 28 are slidable respectively and are located two upper chutes, horizontal depression bar 29 and vertical depression bar 27 vertical cross distribution, horizontal depression bar 29 is located vertical depression bar 27 top.

The connecting mechanism comprises a limiting block 36, a bar-shaped rod 16, a fixing block 19, a connecting plate 21, a first fastening bolt 20, a second fastening bolt 25, a first spring 22, a nut 18, a threaded rod 17, a second fastening bolt 25, an ejector pin 35, a second spring 12, an electric wire 15 and a moving block 34; the lower surface of the rotating box 2 is provided with two first sliding grooves 23, the two first sliding grooves 23 are respectively positioned on two sides of a rectangular hole, two ends of a bar-shaped rod 16 are respectively provided with a threaded rod 17 in a sliding manner, the lower end of the threaded rod 17 is connected with a fixed block 19, a first spring 22 is arranged between the fixed block 19 and the bar-shaped rod 16, the first spring 22 is sleeved on the threaded rod 17, the upper end of the threaded rod 17 is provided with a nut, a limiting block 36 is connected with the fixed block 19, a connecting plate 21 is connected with the side surface of the fixed block 19, a first fastening bolt 20 is arranged on the connecting plate 21, and the limiting block 36 is positioned in the first sliding grooves 23; a strip-shaped hole 24 is formed in the strip-shaped rod 16, a plurality of moving blocks 34 are slidably arranged in the strip-shaped hole 24, ejector pins 35 are vertically slidably arranged in the moving blocks 34, and the lower surfaces of the ejector pins 35 are fixedly connected with a second spring 12; the lower portion of the second spring 12 is connected with an electric wire 15, the other end of the electric wire 15 is connected with the connecting panel 6, the bottom of the moving block 34 is provided with a second fastening bolt 25, the moving block 34 is provided with a second sliding groove, the second sliding groove is in clearance fit with the bar-shaped rod 16, and the moving block 34 can move along the bar-shaped rod 16.

When the utility model is used, the digital display instrument 3 is held by hand and placed in the rectangular hole, the controller 5 controls the transverse electric cylinder 31 and the longitudinal electric cylinder 30 to respectively drive the transverse pressure rod 29 and the longitudinal pressure rod 27 to contract, and the digital display instrument 3 is held by matching with the two sides of the rectangular hole; the digital display instrument 3 can be visually fixed by the aid of the transverse electric cylinder 31 and the longitudinal electric cylinder 30, pressure sensors can be arranged on inner side faces of the transverse pressure rod 29 and the longitudinal pressure rod 27 and are connected with the controller 5, and when certain pressure is achieved, the transverse electric cylinder 31 and the longitudinal electric cylinder 30 are controlled to contract. The rotating box 2 is manually rotated to turn the held digital display instrument 3 by 90 degrees or 180 degrees, so that the connecting ends on the digital display instrument 3 are conveniently connected in a wiring manner; at this time, when the rotating box 2 rotates, the first magnet 10 on the rotating disc 9 is sequentially attracted with the second magnet 8, for example, four first magnets 10 are uniformly arranged, the attraction of the two magnets is equivalent to the rotation of 90 degrees of the rotating box 2 every time, and the first magnet 10 and the second magnet 8 are arranged mainly for avoiding the random rotation of the rotating box 2; affecting subsequent connection detection. After the digital display instrument 3 is turned over, the position of the bar-shaped rod 16 is moved, so that the thimble 35 above the bar-shaped rod is the same as the longitudinal position of the digital display instrument 3, and the fastening bolt I20 is screwed so that the tail end of the fastening bolt I20 presses the rotating box 2, so that the bar-shaped rod 16 cannot move, and the position of the bar-shaped rod 16 is fixed; moving blocks 34 on the bar-shaped rod 16 move along the bar-shaped rod 16, so that the ejector pins 35 are aligned with the connecting ends on the digital display instrument 3, and then the fastening bolts two 25 are screwed, so that the tail ends of the fastening bolts two 25 press the bar-shaped rod 16, and the moving blocks 34 are fixed; and then the screw cap 18 is screwed to press the thimble 35 on the bar-shaped rod 16 to the connecting end on the digital display instrument 3, the first spring 22 is pressed, the second spring 12 is pressed and contracted when the thimble 35 contacts the connecting end, the connection of the digital display instrument 3 and the connecting panel 6 is completed, and when the digital display instrument 3 needs to be detected, the detection connecting wire can be inserted into the connecting hole 14 corresponding to the connecting panel 6, so that the problems that the connecting end of the digital display instrument 3 is inconvenient to be connected with detection equipment and the connecting end is easy to loosen after connection are solved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a PMSM drive system fault detection uses instrument detection device, including the backup pad of two symmetric distributions, its characterized in that: the rotatable rotating box is arranged between the two supporting plates, the connecting panel is arranged on the rotating box, the rectangular hole is formed in the middle of the rotating box, the clamping mechanism is arranged in the rectangular hole, and the two slidable connecting mechanisms are arranged on the lower surfaces of the supporting plates.

2. The instrumentation test device for detecting failure of a PMSM drive system according to claim 1, the method is characterized in that: it includes horizontal electric jar to add the mechanism of holding, vertical electric jar, horizontal depression bar, vertical depression bar, the top shoe, the lower slider, a controller, the battery is located and rotates the incasement, it has seted up two lower spouts to rotate incasement side lower surface, it has seted up two upper spouts to rotate incasement side upper surface, horizontal electric jar and vertical electric jar respectively with rotate case fixed connection, horizontal electric jar output and horizontal depression bar right-hand member fixed connection, vertical electric jar output and vertical depression bar rear end fixed connection, two lower sliders of each fixedly connected with of horizontal depression bar both ends lower surface, two top shoes of each fixedly connected with of vertical depression bar both ends upper surface, two lower sliders are slidable respectively and are located two lower spouts, two top shoes are slidable respectively and are located two upper spouts.

3. The device for detecting the instrument for detecting the fault of the PMSM drive system according to claim 1, wherein the connecting mechanism comprises a limiting block, a bar-shaped rod, a fixing block, a connecting plate, a first fastening bolt, a second fastening bolt, a first spring, a nut, a threaded rod, a thimble, a second spring, an electric wire and a moving block; the lower surface of the rotating box is provided with a first sliding chute, the first sliding chutes are respectively positioned on two sides of the rectangular hole, two ends of the bar-shaped rod are respectively provided with a threaded rod in a sliding manner, the lower end of the threaded rod is connected with the fixed block, a first spring is arranged between the fixed block and the bar-shaped rod, the first spring is sleeved on the threaded rod, the upper end of the threaded rod is provided with a nut, the limiting block is connected with the fixed block, the connecting plate is connected with the side surface of the fixed block, a first fastening bolt is arranged on the connecting plate, and the limiting block is positioned in the first sliding chute; a strip-shaped hole is formed in the strip-shaped rod, a plurality of moving blocks are slidably arranged in the strip-shaped hole, a thimble is arranged in each moving block in a vertically sliding manner, and a spring II is fixedly connected to the lower surface of the thimble; the lower part of the spring is connected with an electric wire, the other end of the electric wire is connected with the connecting panel, and the bottom of the moving block is provided with a second fastening bolt.

4. The PMSM drive system fault detection instrument detection device is characterized in that the middle parts of two ends of the rotating box are respectively and fixedly connected with a rectangular block, the outer side surface of each rectangular block is fixedly connected with a rotating rod, the rotating rods can rotatably penetrate through the support plate, the outer end surface of each rotating rod is fixedly provided with a rotating disk, and a plurality of magnets I are uniformly arranged on each rotating disk; the outer side face of the supporting plate is fixedly provided with a limiting plate, the upper portion of the limiting plate is provided with an arc-shaped groove, a magnet II corresponding to the magnet I is arranged in the arc-shaped groove, and the rotary disc is rotatably located in the arc-shaped groove.

5. The device for detecting the instrument for detecting the fault of the PMSM drive system according to claim 4, wherein a roller bearing is arranged between the supporting plate and the rotating rod.

6. The device for detecting the instrument for detecting the fault of the PMSM drive system according to claim 3, wherein a second sliding groove is formed in the moving block, the second sliding groove is in clearance fit with the bar-shaped rod, and the moving block can move along the bar-shaped rod.