CN214795114U

CN214795114U - High-precision brushless motor load testing device

Info

Publication number: CN214795114U
Application number: CN202120780622.6U
Authority: CN
Inventors: 田丹
Original assignee: Jiaxing Weijin Precision Motor Co ltd
Current assignee: Jiaxing Weijin Precision Motor Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-19
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a high accuracy brushless motor load testing arrangement relates to motor load test equipment field, comprises a workbench, the jack has been run through at the middle part of workstation and has been seted up, jack lower extreme open-ended both sides all are provided with and press from both sides tight piece, press from both sides tight piece and set up to the V style of calligraphy, two press from both sides tight piece and be symmetric distribution, press from both sides one side that tight piece kept away from the jack and be provided with the fly leaf, press from both sides a side middle part fixedly connected with pressure sensor that tight piece kept away from the jack, press from both sides the equal fixedly connected with telescopic link in both ends that tight piece kept away from a side of jack, the one end and the fly leaf fixed connection of telescopic link. The utility model discloses an all be provided with double-threaded screw at jack lower extreme open-ended both ends, double-threaded screw's both ends pass through the screw thread respectively with two fly leaf activity through connection, double-threaded screw's one end fixedly connected with driven gear, be provided with the driving gear between two driven gear, consequently this device is more accurate to the regulation of load.

Description

High-precision brushless motor load testing device

Technical Field

The utility model relates to a motor load test equipment field, in particular to high accuracy brushless motor load test device.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The main function of the device is to generate driving torque as a power source of electrical appliances or various machines, and the main function of the device is to convert electric energy into mechanical energy. After the brushless motor is used for a long time, power reduction of different degrees can occur according to the environment, the service life, the improper daily maintenance, the replacement of equipment devices and the like of a machine room, so that important potential safety hazards exist, and therefore a load loading test is required in the daily maintenance of the motor.

However, at present, the load of the existing brushless motor load testing device cannot be accurately adjusted, so that the testing result is not accurate enough. Therefore, it is necessary to provide a high-precision brushless motor load testing device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy brushless motor load testing arrangement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision brushless motor load testing device comprises a workbench, wherein an insertion hole is formed in the middle of the workbench in a penetrating mode, clamping blocks are arranged on two sides of an opening at the lower end of the insertion hole, the clamping blocks are arranged in a V shape, the two clamping blocks are symmetrically distributed, a movable plate is arranged on one side, away from the insertion hole, of each clamping block, a pressure sensor is fixedly connected to the middle of one side face, away from the insertion hole, of each clamping block, telescopic rods are fixedly connected to two ends of one side face, away from the insertion hole, of each clamping block, one end of each telescopic rod is fixedly connected with the corresponding movable plate, double-headed screws are arranged at two ends of an opening at the lower end of the insertion hole, the two double-headed screws are arranged in parallel, two ends of the two double-headed screws are respectively movably connected with two ends of the two movable plates in a penetrating mode through threads, and first positioning blocks are movably sleeved on the outer sides of two ends of the double-headed screws through bearings, first locating block and the lower fixed surface of workstation are connected, the fixed cover of one end of double-end screw has connect driven gear, two be provided with the driving gear between the driven gear, two driven gear all is connected with the driving gear meshing.

Preferably, one end of the rotating shaft of the driving gear is movably sleeved with an installation block through a bearing, the installation block is fixedly connected with the lower surface of the workbench, and the other end of the rotating shaft of the driving gear is fixedly connected with a first knob.

Preferably, the middle part of the upper surface of the workbench is provided with a brushless motor body, the lower end of a rotating shaft of the brushless motor body penetrates through the jack and extends to a position between the two clamping blocks, and one side face, close to the jack, of each clamping block is connected with a rubber pad in an adhering mode.

Preferably, the middle part fixedly connected with of the upper surface of workstation is a plurality of reference columns that are the annular array and distribute, the upper end of reference column sets up to the round platform form, and is a plurality of the reference column respectively with a plurality of through-hole activity through connection on the ring flange of brushless motor body.

Preferably, the outside of brushless motor body is provided with three second locating pieces that are the annular array and distribute, second locating piece fixed mounting is on the upper surface of workstation, the middle part of second locating piece has the threaded rod through the screw thread activity through connection.

Preferably, one end of the threaded rod close to the brushless motor body is fixedly connected with a pressing block, one end of the pressing block is arranged to be in a round table shape, and the other end of the threaded rod is fixedly connected with a second knob.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a both sides at jack lower extreme open-ended all are provided with the clamp block, and the clamp block sets up to V style of calligraphy, and the clamp block keeps away from a side middle part fixedly connected with pressure sensor of jack, is provided with the telescopic link between clamp block and the fly leaf, and pressure sensor can detect the extrusion force between fly leaf and the clamp block, and then detects the clamp force of clamp block to the pivot of brushless motor body to the load that this device was applyed when working of brushless motor body is monitored in real time;

2. the utility model discloses an all be provided with double-ended screw at jack lower extreme open-ended both ends, double-ended screw's both ends are passed through the screw thread respectively with two fly leaf activity through connection, double-ended screw's one end fixedly connected with driven gear, be provided with the driving gear between two driven gear, two driven gear all are connected with driving gear engagement, the diameter of driving gear is less than driven gear's diameter, consequently, can drive two double-ended screw synchronous slow rotations through rotating the driving gear, and then drive two clamping block synchronous slow movements, therefore this device is more accurate to the regulation of load.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is a schematic perspective view of the clamping block structure of the present invention.

Fig. 3 is a perspective view of the present invention.

In the figure: 1. a work table; 2. a jack; 3. a clamping block; 31. a rubber pad; 4. a movable plate; 5. a pressure sensor; 6. a telescopic rod; 7. a double-ended screw; 8. a first positioning block; 9. a driven gear; 10. a driving gear; 11. mounting blocks; 12. a first knob; 13. a brushless motor body; 14. a positioning column; 15. a second positioning block; 16. a threaded rod; 17. a compression block; 18. a second knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a high-precision brushless motor load testing device as shown in figures 1-3, which comprises a workbench 1, wherein a jack 2 is arranged in the middle of the workbench 1 in a penetrating way, a brushless motor body 13 is arranged in the middle of the upper surface of the workbench 1, the lower end of a rotating shaft of the brushless motor body 13 penetrates through the jack 2 and extends between two clamping blocks 3, the two sides of the opening at the lower end of the jack 2 are respectively provided with a clamping block 3, the clamping blocks 3 are arranged in a V shape, the two clamping blocks 3 are symmetrically distributed, a rubber pad 31 is bonded and connected to one side surface of each clamping block 3 close to the jack 2, the two clamping blocks 3 can clamp the rotating shaft of the brushless motor body 13, the rubber pad 31 can improve the friction force between the rotating shaft of the brushless motor body 13 and the clamping blocks 3, the clamping blocks 3 can apply load to the rotating shaft of the brushless motor body 13 through the friction force, as can be seen from the formula F ═ uN, the friction force applied to the rotating shaft of the brushless motor body 13 is proportional to the pressing force applied by the clamping block 3, and therefore, the load applied to the rotating shaft of the brushless motor body 13 can be changed by changing the clamping force applied to the rotating shaft of the brushless motor body 13 by the clamping block 3.

Secondly, a movable plate 4 is arranged on one side of the clamping block 3 far away from the jack 2, a pressure sensor 5 is fixedly connected to the middle of one side of the clamping block 3 far away from the jack 2, the model of the pressure sensor 5 is a 7MF1567 Siemens pressure sensor, the pressure sensor 5 is arranged for monitoring the extrusion force of the clamping block 3 on the rotating shaft of the brushless motor body 13 in real time, telescopic rods 6 are fixedly connected to both ends of one side of the clamping block 3 far away from the jack 2, one end of each telescopic rod 6 is fixedly connected with the movable plate 4, each telescopic rod 6 can stretch, both ends of the lower end opening of the jack 2 are respectively provided with a double-head screw 7, the two double-head screws 7 are arranged in parallel, both ends of the two double-head screws 7 are respectively movably connected with both ends of the two movable plates 4 through threads, therefore, the double-threaded screw 7 can drive the two movable plates 4 to move synchronously and move close to or away from each other when rotating.

Furthermore, the outer sides of the two ends of the double-head screw 7 are movably sleeved with a first locating block 8 through a bearing, the first locating block 8 is fixedly connected with the lower surface of the workbench 1, one end of the double-head screw 7 is fixedly sleeved with a driven gear 9, a driving gear 10 is arranged between the two driven gears 9, the diameter of the driving gear 10 is smaller than that of the driven gear 9, the two driven gears 9 are both meshed with the driving gear 10, therefore, the driving gear 10 can drive the two driven gears 9 to synchronously and slowly rotate when rotating, and then drive two double-end screw 7 synchronous rotations, the one end of the pivot of driving gear 10 has cup jointed installation piece 11 through the bearing activity, and installation piece 11 is connected with the lower fixed surface of workstation 1, and the other end fixedly connected with of the pivot of driving gear 10 has first knob 12, can drive driving gear 10 through rotating first knob 12 and rotate.

Specifically, a plurality of positioning columns 14 distributed in an annular array are fixedly connected to the middle of the upper surface of the workbench 1, the upper ends of the positioning columns 14 are arranged in a circular truncated cone shape, the plurality of positioning columns 14 are respectively movably connected with a plurality of through holes on a flange of the brushless motor body 13 in a penetrating manner, the positioning columns 14 are used for positioning the brushless motor body 13 so as to prevent the brushless motor body 13 from rotating, three second positioning blocks 15 distributed in an annular array are arranged on the outer side of the brushless motor body 13, the second positioning blocks 15 are fixedly installed on the upper surface of the workbench 1, a threaded rod 16 is movably connected to the middle of the second positioning blocks 15 in a penetrating manner through threads, a pressing block 17 is fixedly connected to one end of the threaded rod 16 close to the brushless motor body 13, one end of the pressing block 17 is arranged in a circular truncated cone shape, a second knob 18 is fixedly connected to the other end of the threaded rod 16, and the threaded rod 16 is driven to rotate by rotating the second knob 18, and then drive compact heap 17 and rotate while removing to make compact heap 17 can carry out the chucking to the flange on the brushless motor body 13, consequently can effectively avoid brushless motor body 13 and workstation 1 to take place to separate.

The utility model discloses the theory of operation:

when the device is used, the brushless motor body 13 is placed on the upper surface of the workbench 1, a plurality of through holes in a connecting flange of the brushless motor body 13 are respectively sleeved outside a plurality of positioning columns 14, then the second knob 18 is screwed to drive the threaded rod 16 to rotate, and further the pressing block 17 is driven to move until the pressing block 17 tightly clamps the connecting flange on the brushless motor body 13, so that the brushless motor body 13 can be well positioned;

then twist and move first knob 12 and drive driving gear 10 and rotate, driving gear 10 rotates and can drive two driven gear 9 synchronous rotations, and then drive two double-end screw 7 synchronous rotations, double-end screw 7 drives two fly leaf 4 synchronous motion and is close to each other when rotating, and then drive two and press from both sides tight piece 3 and be close to each other and press from both sides the pivot of brushless motor body 13 tightly, the pivot of brushless motor body 13 this moment and the load that produces between the tight piece 3 of clamp are the brushless motor body 13 during operation promptly, consequently this device drives two and press from both sides tight piece 3 and be close to each other or keep away from each other the load that can accurate regulation brushless motor body 13 during operation received through twisting first knob 12.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a high accuracy brushless motor load testing arrangement, includes workstation (1), its characterized in that: the middle part of the workbench (1) is provided with a jack (2) in a penetrating way, two sides of the lower end opening of the jack (2) are respectively provided with a clamping block (3), the clamping blocks (3) are arranged into a V shape, the two clamping blocks (3) are symmetrically distributed, one side of each clamping block (3) far away from the jack (2) is provided with a movable plate (4), the middle part of one side of each clamping block (3) far away from the jack (2) is fixedly connected with a pressure sensor (5), the two ends of one side of each clamping block (3) far away from the jack (2) are respectively and fixedly connected with a telescopic rod (6), one end of each telescopic rod (6) is fixedly connected with the movable plate (4), the two ends of the lower end opening of the jack (2) are respectively provided with a double-end screw (7), the two double-end screw (7) are arranged in parallel, and the two ends of the two double-end screw (7) are respectively and movably connected with the two movable plates (4) in a penetrating way through threads, first locating piece (8) have all been cup jointed through the bearing activity in the both ends outside of double-end screw (7), the lower fixed surface of first locating piece (8) and workstation (1) is connected, the fixed cover of one end of double-end screw (7) has been cup jointed driven gear (9), two be provided with driving gear (10) between driven gear (9), two driven gear (9) all are connected with driving gear (10) meshing.

2. A high precision brushless motor load testing device according to claim 1, characterized in that: the one end of the pivot of driving gear (10) has been cup jointed installation piece (11) through the bearing activity, installation piece (11) and the lower fixed surface of workstation (1) are connected, the other end fixedly connected with first knob (12) of the pivot of driving gear (10).

3. A high precision brushless motor load testing device according to claim 2, characterized in that: the upper surface middle part of workstation (1) is provided with brushless motor body (13), the lower extreme of the pivot of brushless motor body (13) runs through jack (2) and extends to between two clamp tight piece (3), a side adhesive joint that clamp tight piece (3) are close to jack (2) has rubber pad (31).

4. A high precision brushless motor load testing device according to claim 3, characterized in that: the middle part fixedly connected with of the upper surface of workstation (1) is a plurality of reference column (14) that are the annular array and distribute, the upper end of reference column (14) sets up to the round platform form, and is a plurality of reference column (14) respectively with a plurality of through-hole activity through connection on the ring flange of brushless motor body (13).

5. The high-precision brushless motor load testing device according to claim 4, wherein: the outside of brushless motor body (13) is provided with three second locating piece (15) that are the annular array and distribute, second locating piece (15) fixed mounting is at the upper surface of workstation (1), the middle part of second locating piece (15) has threaded rod (16) through screw thread activity through connection.

6. The high-precision brushless motor load testing device according to claim 5, wherein: one end fixedly connected with compact heap (17) that threaded rod (16) are close to brushless motor body (13), the one end of compact heap (17) sets up to the round platform form, the other end fixedly connected with second knob (18) of threaded rod (16).