CN210534284U

CN210534284U - Motor life test fixture

Info

Publication number: CN210534284U
Application number: CN201921175183.5U
Authority: CN
Inventors: 周静静; 陈茂武
Original assignee: Changzhou Duowei Electric Co ltd
Current assignee: Changzhou Duowei Electric Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-15
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a motor life test anchor clamps belongs to anchor clamps technical field, its technical scheme main points are, the on-line screen storage device comprises a base, the mounting panel with be used for fixed elevating system who is surveyed the motor, elevating system includes the screw rod, supporting shoe and lower V type piece, screw thread opposite direction on the screw rod, the screw rod rotates with the base to be connected, the supporting shoe is including first supporting shoe and the second supporting shoe that is located V type piece both sides down, be equipped with respectively on two supporting shoes with V type piece V type side sliding fit's inclined plane down, and two supporting shoes pass through threaded connection spare and screw rod cooperation, threaded connection spare slides with the base and is connected, the screw rod is kept away from to the V type opening of lower V type piece, it is located down in the V type opening of V type piece to. The utility model discloses have different tested motor output shaft of easily adjusting and shaft coupling concentricity, reduce experimental error's effect, be applicable to the tested motor of the multiple not unidimensional of clamping and appearance.

Description

Motor life test fixture

Technical Field

The utility model belongs to the technical field of the anchor clamps technique and specifically relates to a motor life test anchor clamps are related to.

Background

The purpose of the reliability test is to determine the reliability index that a product can achieve a specified task within a specified service life under specified conditions. The life test is the most important and basic reliability test for evaluating the life characteristics of products.

At present, in the actual production, when carrying out life test to the motor, use motor life test anchor clamps as shown in fig. 1 usually, it includes base 1, first mounting panel 22 and second mounting panel 23 with base 1 vertical fixation respectively through the bolt, there is magnetic loader 3 through the bolt fastening on the first mounting panel 22, connect the flange installation face of being surveyed motor 6 through the screw on the second mounting panel 23, realize being surveyed motor 6 and second mounting panel 23 fixed, output shaft and magnetic loader 3 of being surveyed motor 6 are connected with shaft coupling 4 respectively, drag magnetic loader 3 through shaft coupling 4, carry out load life test to being surveyed motor 6.

In the above-mentioned prior art scheme, the position of bolt hole on the second mounting panel and the position of shaft coupling are relatively fixed for the output shaft of the motor under test and the concentricity of shaft coupling can't be adjusted, in case the external diameter of the motor under test has the deviation slightly, the condition that motor output shaft and shaft coupling under test are not concentric appears easily, the load that the motor under test actually received and the loaded load of magnetic powder loader appear the error, influence the reliability of experiment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor life test anchor clamps, it has easily to adjust and is surveyed motor output shaft and shaft coupling concentricity, reduces experimental error's effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a motor life test fixture comprises a base and a mounting plate vertically fixed on the base, wherein a lifting mechanism used for adjusting the height of a tested motor is arranged on the base, the tested motor is arranged on the lifting mechanism, an output shaft of the tested motor is coaxially fixed with a coupler, the lifting mechanism comprises a screw, a supporting block and a lower V-shaped block from bottom to top, the thread directions of the outer peripheral surfaces of the screw on the two sides of the V-shaped opening lowest point of the lower V-shaped block are opposite, the screw is rotationally connected with the base, the supporting block comprises a first supporting block and a second supporting block, the first supporting block and the second supporting block are arranged on the two sides of the lower V-shaped block, one surface of the first supporting block and one surface of the second supporting block, which is close to the V-shaped side surface of the lower V-shaped block, are inclined surfaces, and the inclined surfaces are in sliding fit with the V-shaped, the bottom surfaces of the first supporting block and the second supporting block are respectively fixed with a threaded connector, the threaded connectors are in threaded fit with the screw rods, the threaded connectors are connected with the base in a sliding mode, and the V-shaped openings of the lower V-shaped blocks are far away from the screw rods.

By adopting the technical scheme, the screw rod is provided with the threads in opposite directions, the two thread connecting pieces connected with the screw rod are driven by rotating the screw rod to move reversely on the screw rod along the horizontal direction, and meanwhile, the two supporting blocks are driven to move reversely on the screw rod. When the first supporting block and the second supporting block are close to or far away from each other, the V-shaped side face of the lower V-shaped block for fixing the motor to be measured is in sliding fit with the two inclined planes, the side face of the lower V-shaped block can move obliquely along the inclined plane direction easily, the lower V-shaped block can move up and down integrally along the direction vertical to the base, and therefore the motor to be measured is driven to move up and down relative to the coupler. The concentricity of the output shaft of the tested motor and the coupling is adjusted by a user according to the size of the tested motor, so that the output shaft of the tested motor and the coupling are concentrically connected, the test error is reduced, and the reliability of the motor life test is improved.

The utility model discloses further set up to, V type piece includes first V type piece and is located down V type piece under a plurality of seconds of first V type piece top, the bottom of V type piece under the second with the V type opening of first V type piece is pegged graft, just the V type opening of V type piece is less than under the second the V type opening of first V type piece.

Through adopting above-mentioned technical scheme, easily V type piece is fixed the less measured motor of external diameter more firmly down, and simultaneously, the V type opening acceptance of V type piece is than higher down, can fix the measured motor of multiple different external diameters, also is adapted to the measured motor of different shell shapes such as circular or square. The universality of the motor service life clamp in the scheme is improved, the phenomenon that a user manufactures various motor test clamps for fixing tested motors with various different sizes and specifications to cause the waste of experimental space and experimental resources is reduced.

The utility model discloses further set up to, it is equipped with the dead lever respectively to be surveyed the motor both sides, the dead lever with the base vertical fixation, the plane at dead lever place with the radial cross section of motor is parallel, be equipped with the clamp plate on the dead lever, the outer peripheral face of dead lever is equipped with the screw thread, from the top down threaded connection has first nut and second nut on the dead lever, the clamp plate is located first nut with between the second nut.

Through adopting above-mentioned technical scheme for the clamp plate forms fixedly to the upper portion of being surveyed the motor, increases the tightness of motor life test anchor clamps to being surveyed the motor in this scheme, and first nut and second nut make the clamp plate can follow the dead lever up-and-down motion when playing the fixed pressing plate effect, and spacing through carrying on the position of clamp plate on the dead lever, easily the clamp plate fastens the being surveyed the motor of different external diameters.

The utility model discloses further set up to, fixedly connected with goes up V type piece on the clamp plate, the V type opening orientation of going up V type piece the motor under test.

Through adopting above-mentioned technical scheme, go up the V type piece and easily fix the motor under test, stability when further having increased the clamp plate and fastening motor housing. Meanwhile, the opening of the V-shaped upper V-shaped block is easy to fix various motors to be tested with different outer diameters, and the universality of the upper V-shaped block is improved.

The utility model discloses further set up to, the last orientation of threaded connection spare the screw rod is provided with the mounting hole, the screw rod is worn to establish in the mounting hole, be equipped with in the mounting hole with screw rod screw-thread fit's internal thread.

By adopting the technical scheme, the stable connection between the threaded connecting piece and the screw rod is easy, so that the stability of the supporting block during the movement on the screw rod is improved.

The utility model discloses further set up to, the last fixed surface of base installs the guide rail, the guide rail is followed the axial setting of screw rod, threaded connection spare is kept away from the one end embedding of supporting shoe in the guide rail and with guide rail sliding fit.

Through adopting above-mentioned technical scheme, the guide rail plays limiting displacement to threaded connection spare's motion, is difficult for taking place radial skew when making threaded connection spare along the axial motion of screw rod, has further improved the stability of supporting shoe, has reduced to adjust inclined plane and the V type piece side under on the supporting shoe not enough laminating behind the measured motor height, leads to being surveyed the condition that the motor can not stably fix to appear on the V type piece down.

The utility model discloses further set up to, the cover is equipped with the mounting on the screw rod, the mounting with the screw rod rotates to be connected, the mounting is located the below of V type piece down, just the mounting is kept away from down the one end of V type piece with base fixed connection.

Through adopting above-mentioned technical scheme, easily fix the screw rod on the base and do not influence the rotation of screw rod, can increase the stability of screw rod to increase the stability of motor life test anchor clamps in this scheme.

The utility model discloses further set up to, the mounting internal surface is followed mounting circumference is equipped with the bead, the bead with the screw rod block.

Through adopting above-mentioned technical scheme, the bead can play axial limiting displacement to the mounting, makes the screw rod when rotating the mounting be difficult for taking place axial displacement with the screw rod, has further strengthened the fixed action of mounting to the screw rod.

The utility model discloses further set up to, two V type sides of lower V type piece are equipped with the spout respectively, two be equipped with on the inclined plane respectively with spout sliding fit's slider.

Through adopting above-mentioned technical scheme, play limiting displacement to the relative motion orbit of V type piece on the supporting shoe down, make V type piece along rectilinear movement and be difficult for taking place the skew down on the supporting shoe, increase the stability of being connected between V type piece and the supporting shoe down to the stability of anchor clamps in this scheme is improved.

The utility model discloses further set up to, the one end fixedly connected with twist grip of screw rod.

Through adopting above-mentioned technical scheme, easily the user rotates the screw.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the lower V-shaped block, the supporting block and the screw rod, the output shaft of the motor to be tested can be connected with the coupler in a concentric mode, testing errors are reduced, and the reliability of the motor life test is improved.

2. Through the arrangement of inserting the first lower V-shaped block and the second lower V-shaped block, the tested motors with different specifications and sizes can utilize the test fixture in the scheme to perform life test, the universality of the fixture in the scheme is enlarged, the test space is reduced, and the test resource is saved.

3. Through the setting of clamp plate and last V type piece, easily fasten the measured motor of multiple different external diameters from upper portion, simultaneously, go up the upper and lower fastening cooperation of V type piece and lower V type piece, can play the effect of stable fixed measured motor.

Drawings

Fig. 1 is a schematic view of the overall structure of the prior art.

Fig. 2 is a schematic view of the overall structure of the present embodiment.

Fig. 3 is a schematic cross-sectional view of the present embodiment.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a schematic view showing the connection between the support block and the lower V-block in this embodiment.

In the figure, 1, a base; 2. mounting a plate; 3. a magnetic powder loader; 4. a coupling; 5. a lifting mechanism; 51. a screw; 52. a support block; 521. a first support block; 522. a second support block; 53. a V-shaped block is arranged; 531. a first lower V-shaped block; 532. a second lower V-shaped block; 6. a motor to be tested; 7. a bevel; 8. a threaded connection; 9. rotating the handle; 10. fixing the rod; 11. pressing a plate; 12. a thread; 13. a first nut; 14. a second nut; 15. arranging a V-shaped block; 16. mounting holes; 17. a guide rail; 18. a fixing member; 19. a rib; 20. a chute; 21. a slider; 22. a first mounting plate; 23. a second mounting plate.

Detailed Description

Referring to fig. 2, the motor life test fixture disclosed in this embodiment includes a base 1, a mounting plate 2, and a lifting mechanism 5 for adjusting the height of a motor 6 to be tested. The mounting plate 2 is vertically and fixedly connected with the base 1 through bolts, the magnetic powder loader 3 is fixed on the upper portion of the mounting plate 2 through bolts, the coupler 4 is located between the magnetic powder loader 3 and the tested motor 6, and the output shaft of the magnetic powder loader 3 and the output shaft of the tested motor 6 are coaxially fixed with the two ends of the coupler 4 respectively. The tested motor 6 is arranged on the lifting mechanism 5, the relative position between the output shaft of the tested motor 6 and the coupling 4 is easily adjusted through the vertical displacement of the lifting mechanism 5, so that the output shaft of the tested motor 6 is concentrically connected with the coupling 4, and the error in the service life test process of the tested motor 6 can be reduced.

Referring to fig. 3, the lifting mechanism 5 includes a screw 51, a support block 52 and a lower V-shaped block 53, which are sequentially arranged from bottom to top, and opposite threads are formed on two sides of the outer peripheral surface of the screw 51, which are located at the lowest point of the V-shaped opening of the lower V-shaped block 53. The supporting block 52 comprises a first supporting block 521 and a second supporting block 522, the first supporting block 521 and the second supporting block 522 are located at two sides of the lower V-shaped block 53, one surfaces of the first supporting block 521 and the second supporting block 522, which are close to the V-shaped side surface of the lower V-shaped block 53, are inclined surfaces 7 (see fig. 5), and the inclined surfaces 7 are in sliding fit with the V-shaped side surface of the lower V-shaped block 53. The bottom surfaces of the first supporting block 521 and the second supporting block 522 are respectively welded and fixed with a threaded connector 8 (see fig. 4) in threaded fit with the screw 51, the V-shaped opening of the lower V-shaped block 53 is far away from the screw 51, the motor 6 to be tested is positioned in the V-shaped opening of the lower V-shaped block 53, and one end of the screw 51 is fixedly connected with a rotating handle 9. The two threaded connecting pieces 8 on the screw 51 are driven to move reversely by rotating the rotating handle 9, so that the first supporting block 521 and the second supporting block 522 are driven to move reversely, the lower V-shaped block 53 can move up and down in the vertical direction by sliding obliquely with the inclined plane 7, and the function of adjusting the height of the output shaft of the tested motor 6 is achieved.

Referring to fig. 3, the lower V-shaped block 53 includes a first lower V-shaped block 531 and a plurality of second lower V-shaped blocks 532 inserted above the first lower V-shaped block 531, and a V-shaped opening of the second lower V-shaped blocks 532 is smaller than a V-shaped opening of the first lower V-shaped block 531, so that the motor 6 to be measured having a smaller outer diameter can be easily fixed. A convex block (not shown in the figure) can be arranged on one surface of the second lower V-shaped block 532, which is abutted against the first lower V-shaped block 531, and a groove (not shown in the figure) for being inserted into the convex block can be arranged on the first lower V-shaped block 531, so that the first lower V-shaped block 531 and the second lower V-shaped block 532 are inserted, and the stability of the lifting mechanism in the embodiment is improved.

Referring to fig. 3, two sides of the motor 6 to be measured are respectively provided with a fixing rod 10, the fixing rods 10 are vertically fixed with the base 1 through bolts, and the plane where the two fixing rods 10 are located is parallel to the radial section of the motor. The fixing rod 10 is provided with a pressing plate 11, and the pressing plate 11 can move up and down along the fixing rod 10. The periphery of the fixing rod 10 is provided with threads 12, the fixing rod 10 is in threaded connection with a first nut 13 and a second nut 14 from top to bottom, and the pressing plate 11 is located between the first nut 13 and the second nut 14, so that the first nut 13 and the second nut 14 can limit the movement of the pressing plate 11 on the fixing rod 10, and the pressing plate 11 can easily compress and fix the upper part of the tested motor 6. In order to facilitate the movement of the nut on the fixation rod 10, the first nut 13 in this embodiment is designed as a wing nut. The lower part of the pressing plate 11 is fixed with an upper V-shaped block 15 through bolts, and a V-shaped opening of the upper V-shaped block 15 faces the tested motor 6, so that the pressing plate 11 can more stably fix the tested motors 6 with various specifications and sizes.

Referring to fig. 4, the screw 51 is sleeved with a fixing member 18 located below the lower V-shaped block 53, the fixing member 18 is rotatably connected with the screw 51, and one end of the fixing member 18, which is far away from the lower V-shaped block 53, is fixedly connected with the base 1 through a bolt, so that the screw 51 is fixed, and the stability of the clamp in this embodiment is improved. And the inner surface of the fixed part 18 is provided with a rib 19 along the circumferential direction of the fixed part 18, and the rib 19 is clamped with the screw rod 51, so that the axial displacement of the fixed part 18 on the screw rod 51 is reduced. In the present embodiment, the threaded connector 8 is provided with a mounting hole 16 (see fig. 5) facing the screw 51, the mounting hole 16 is provided with an internal thread threadedly engaged with the screw 51, and the screw 51 is inserted into the mounting hole 16, so that the threaded connector 8 and the screw 51 are stably fixed.

Referring to fig. 5, in order to prevent the support block 52 from shifting when moving on the screw 51, the upper surface of the base 1 is fixed with a guide rail 17 for limiting the threaded connector 8 by bolts, the guide rail 17 is arranged along the axial direction of the screw 51, and one end of the threaded connector 8 far from the support block 52 is embedded in the guide rail 17 and is in sliding fit with the guide rail 17. In order to make the lower V-shaped block 53 and the supporting block 52 not easily deviate during oblique sliding, and to improve the stability of the motor life test fixture in this embodiment, two V-shaped side surfaces of the lower V-shaped block 53 are respectively provided with a sliding groove 20, and two inclined surfaces 7 are respectively provided with a sliding block 21 in sliding fit with the sliding groove 20, so as to limit the relative movement between the lower V-shaped block 53 and the supporting block 52.

The implementation principle of the above embodiment is as follows: when a motor life test is required, the tested motor 6 is placed on the V-shaped opening of the lower V-shaped block 53, the output shaft of the tested motor 6 and the coupler 4 are not concentric due to the size difference of the tested motor 6, and the coaxial fixation is difficult, a user can rotate the rotating handle 9 of the motor life test fixture in the embodiment to drive the screw 51 to rotate, the thread directions of two sides of the lowest point of the V-shaped opening of the lower V-shaped block 53 on the screw 51 are opposite, so that the two thread connecting pieces 8 in threaded connection with the screw 51 are driven to move in opposite directions when the screw 51 rotates, and the first supporting block 521 and the second supporting block 522 welded with the two thread connecting pieces 8 are driven to move in opposite directions. Because the inclined plane 7 on the first supporting block 521 and the second supporting block 522 is obliquely abutted against and in sliding fit with the V-shaped side surface of the lower V-shaped block 53, when the first supporting block 521 and the second supporting block 522 do reverse motion, the lower V-shaped block 53 is driven to move up and down along the direction perpendicular to the base 1, so that the tested motor 6 on the lower V-shaped block 53 is driven to move up and down, and the concentricity of the tested motor 6 and the coupling 4 can be adjusted by a user easily. The V-shaped opening of the lower V-shaped block 53 is easy to fix the tested motor 6 and the lower V-shaped block 53 more stably, and the size of the tested motor 6 is high in accommodation degree, so that the tested motors 6 with different sizes can be fixed easily.

After the concentricity of the tested motor 6 and the coupling 4 is adjusted and coaxially fixed, the user adjusts the height of the pressing plate 11 through the first nut 13 and the second nut 14, so that the upper V-shaped block 15 is fixed on the upper part of the tested motor 6. The motor life test fixture in the embodiment stably fastens the motor 6 to be tested by the upper and lower clamping effects of the lower V-shaped block 53 and the upper V-shaped block 15 on the motor 6 to be tested. When the size of the motor 6 to be tested is small, the lower V-shaped block 53 is not easy to stably fix the motor 6 to be tested, or the first support block 521 and the second support block 522 in this embodiment move to the two ends of the screw 51, and the output shaft of the motor 6 to be tested and the coupling 4 are not enough to be concentric, a user can insert the second lower V-shaped block 532 with the V-shaped opening smaller than the first lower V-shaped block 531 into the V-shaped opening of the first lower V-shaped block 531, raise the height of the lower V-shaped block 53, increase the adaptation degree of the lower V-shaped block 53 and the small-sized motor 6 to be tested, and further improve the universality of the motor life test fixture in this embodiment.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a motor life test anchor clamps, includes base (1) and vertical fixation mounting panel (2) on base (1), its characterized in that: the lifting mechanism (5) used for adjusting the height of a tested motor (6) is arranged on the base (1), the lifting mechanism (5) comprises a screw rod (51), a supporting block (52) and a lower V-shaped block (53) from bottom to top, the peripheral surface of the screw rod (51) is positioned on two sides of the V-shaped opening lowest point of the lower V-shaped block (53) in opposite directions, the screw rod (51) is rotatably connected with the base (1), the supporting block (52) comprises a first supporting block (521) and a second supporting block (522), the first supporting block (521) and the second supporting block (522) are positioned on two sides of the lower V-shaped block (53), one surface, close to the V-shaped side surface of the lower V-shaped block (53), of the first supporting block (521) and the second supporting block (522) is an inclined surface (7), and the inclined surface (7) is in sliding fit with the V-shaped side surface of the lower V-shaped block (53), the bottom surfaces of the first supporting block (521) and the second supporting block (522) are respectively fixed with a threaded connector (8), the threaded connector (8) is in threaded fit with the screw rod (51), the threaded connector (8) is connected with the base (1) in a sliding mode, and a V-shaped opening of the lower V-shaped block (53) is far away from the screw rod (51).

2. The motor life test fixture of claim 1, wherein: the lower V-shaped block (53) comprises a first lower V-shaped block (531) and a plurality of second lower V-shaped blocks (532) located above the first lower V-shaped block (531), the bottoms of the second lower V-shaped blocks (532) are connected with the V-shaped openings of the first lower V-shaped block (531) in an inserting mode, and the V-shaped openings of the second lower V-shaped blocks (532) are smaller than the V-shaped openings of the first lower V-shaped block (531).

3. The motor life test fixture of claim 2, wherein: the motor to be measured (6) is provided with fixing rods (10) on two sides respectively, the fixing rods (10) are vertically fixed with the base (1), the plane where the fixing rods (10) are located is parallel to the radial cross section of the motor, pressing plates (11) are arranged on the fixing rods (10), threads (12) are arranged on the peripheral face of each fixing rod (10), first nuts (13) and second nuts (14) are connected to the fixing rods (10) from top to bottom in a threaded mode, and the pressing plates (11) are located between the first nuts (13) and the second nuts (14).

4. The motor life test fixture of claim 3, wherein: the pressing plate (11) is fixedly connected with an upper V-shaped block (15), and a V-shaped opening of the upper V-shaped block (15) faces the motor (6) to be measured.

5. The motor life test fixture of claim 4, wherein: the threaded connecting piece (8) is provided with a mounting hole (16) towards the screw rod (51), the screw rod (51) penetrates through the mounting hole (16), and an internal thread in threaded fit with the screw rod (51) is arranged in the mounting hole (16).

6. The motor life test fixture of claim 5, wherein: the upper surface fixed mounting of base (1) has guide rail (17), guide rail (17) are followed screw rod (51) axial sets up, threaded connection spare (8) keep away from the one end embedding of supporting shoe (52) in guide rail (17) and with guide rail (17) sliding fit.

7. The motor life test fixture of claim 6, wherein: the cover is equipped with mounting (18) on screw rod (51), mounting (18) with screw rod (51) rotate to be connected, mounting (18) are located the below of V type piece (53) down, just mounting (18) are kept away from the one end of V type piece (53) down with base (1) fixed connection.

8. The motor life test fixture of claim 7, wherein: the inner surface of the fixing piece (18) is provided with a rib (19) along the circumferential direction of the fixing piece (18), and the rib (19) is clamped with the screw rod (51).

9. The motor life test fixture of claim 1, wherein: and the two V-shaped side surfaces of the lower V-shaped block (53) are respectively provided with a sliding groove (20), and the two inclined surfaces (7) are respectively provided with a sliding block (21) in sliding fit with the sliding grooves (20).

10. The motor life test fixture of claim 1, wherein: one end of the screw rod (51) is fixedly connected with a rotating handle (9).