CN219871686U - Motor load testing device - Google Patents

Abstract

The utility model discloses a motor load testing device; the motor load testing device comprises: the machine case is provided with a positioning mechanism, a pre-pressing mechanism and a testing mechanism which are arranged on the machine case; the motor is used for placing the motor, the pre-pressing mechanism is used for pressing the motor, the testing mechanism is used for testing the motor, a rotating shaft is arranged on the motor, and the rotating shaft penetrates through the positioning mechanism and is in transmission connection with the testing mechanism. According to the utility model, the motor is positioned through the positioning mechanism, the motor is pressed through the pre-pressing mechanism, then the motor is tested by the testing mechanism, the whole-process automation test can be realized, the testing precision is high, the efficiency is high, the unidirectional bearing forward rotation locking principle and the reverse rotation principle and the principle of stopping loosening are utilized to connect the rotating shaft of the motor, the problem of motor shaft damage is avoided, meanwhile, the hysteresis brake is utilized to apply the load, so that the load size can be accurately adjusted, and then the encoder is utilized to test the rotating speed, so that the motor is accurate and efficient, and the practicability is high.

Description

Motor load testing device

Technical Field

The utility model relates to the technical field of motor load testing, in particular to a motor load testing device.

Background

In the field of motor production, defects such as broken wires, cold joints, short circuits and the like of motor rotor coils often occur. For these defects, it is generally necessary to load the motor, and the defects can be detected by applying a load to the motor and detecting the current and the rotation speed of the motor. The traditional motor load test adopts the fan blade as the load, adopts the lock to chew and be connected with the motor, and the motor is easy to skid with the fan blade junction in the test process, leads to the rotational speed test inaccurate, and the lock chews the motor shaft core of scratch easily.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a motor load testing device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the embodiment of the utility model provides a motor load testing device, which comprises: the machine case is provided with a positioning mechanism, a pre-pressing mechanism and a testing mechanism which are arranged on the machine case; the motor is used for placing the motor, the pre-pressing mechanism is used for pressing the motor, the testing mechanism is used for testing the motor, a rotating shaft is arranged on the motor, and the rotating shaft penetrates through the positioning mechanism and is in transmission connection with the testing mechanism.

In one embodiment, the test mechanism comprises an encoder, a mounting plate, a hysteresis brake, a coupling, and a one-way bearing; the machine case is provided with a panel, the mounting plate is connected with the panel through a stand column, the encoder and the hysteresis brake are connected with the mounting plate, the unidirectional bearing is embedded in the coupler, the hysteresis brake is provided with a first transmission end and a second transmission end, the rotating shaft penetrates through the positioning mechanism and is in transmission connection with the unidirectional bearing, the coupler is in transmission connection with the first transmission end, and the second transmission end is in transmission connection with the encoder.

In a specific embodiment, the hysteresis brake is arranged on the upper surface of the mounting plate, the encoder is arranged on the lower surface of the mounting plate, and the second transmission end penetrates through the mounting plate to be in transmission connection with the encoder.

In a specific embodiment, two sides of the encoder are provided with hanging lugs, and the hanging lugs are connected with the mounting plate through the heightening blocks.

In a specific embodiment, the positioning mechanism comprises a positioning seat, the positioning seat is mounted on the panel, the motor is mounted on the positioning seat, and the rotating shaft penetrates through the positioning seat to be in transmission connection with the unidirectional bearing.

In a specific embodiment, a silica gel pad is arranged between the motor and the positioning seat.

In one embodiment, the pre-pressing mechanism comprises a pressing rotary cylinder, a pressing arm and a pressing block; the pressing rotary cylinder is fixed on the panel, a piston rod is arranged on the pressing rotary cylinder, one end of the pressing arm is connected with the piston rod, the other end of the pressing arm is connected with the pressing block, and the pressing block is used for pressing the motor.

In a specific embodiment, the motor load testing device further comprises a protection mechanism, the protection mechanism comprises a front fixing seat, a rear fixing seat, a front optical axis, a rear optical axis, a front sliding block, a rear sliding block and a protection cover, the front optical axis is installed on the front fixing seat, the front sliding block is installed on the front optical axis, the rear optical axis is installed on the rear fixing seat, the rear sliding block is installed on the rear optical axis, and one end of the protection cover is connected with the front sliding block, and the other end of the protection cover is connected with the rear sliding block.

In one embodiment, the protective cover is provided with a handle.

In a specific embodiment, a touch display screen is further disposed on the chassis.

Compared with the prior art, the motor load testing device has the beneficial effects that: the motor is positioned through the positioning mechanism, the motor is pressed by the pre-pressing mechanism, then the motor is tested by the testing mechanism, the whole-process automation can be used for testing, the testing precision is high, the efficiency is high, the unidirectional bearing is used for forward rotation and locking, the reverse rotation and stopping loosening principle is used for connecting the rotating shaft of the motor, the motor shaft damage problem is avoided, the hysteresis brake is used for applying the load, the load size can be accurately adjusted, the encoder is used for testing the rotating speed, the precision and the efficiency are high, and the practicability is high.

The utility model is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a motor load testing device provided by the utility model;

fig. 2 is a schematic diagram of a motor load testing device according to the second embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a motor load testing apparatus provided by the present utility model;

FIG. 4 is an exploded view of the positioning mechanism, the testing mechanism and the motor provided by the utility model;

FIG. 5 is a schematic structural view of the pre-pressing mechanism provided by the utility model;

fig. 6 is a schematic structural diagram of a protection mechanism provided by the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Referring to the specific embodiments shown in fig. 1 to 6, the utility model discloses a motor load testing device, which comprises: a case 10, a positioning mechanism 20, a pre-pressing mechanism 30 and a testing mechanism 40 which are arranged on the case 10; the positioning mechanism 20 is used for placing a motor 50, the pre-pressing mechanism 30 is used for pressing the motor 50, the testing mechanism 40 is used for testing the motor 50, a rotating shaft 51 is arranged on the motor 50, and the rotating shaft 51 penetrates through the positioning mechanism 20 and is in transmission connection with the testing mechanism 40.

Specifically, the motor 50 is positioned through the positioning mechanism 20, the pre-pressing mechanism 30 compresses the motor 50, and then the testing mechanism 40 tests the rotating speed of the motor 50, so that the testing can be realized in a full-process automatic manner, the testing precision is high, the efficiency is high, and the practicability is high.

Preferably, the positioning mechanism 20, the pre-pressing mechanism 30 and the testing mechanism 40 are two groups, and are respectively arranged at the left side and the right side of the case 10 to form a left station and a right station, so that motors can be tested at the left station and the right station simultaneously, and the testing efficiency is improved.

In one embodiment, the test mechanism 40 includes an encoder 41, a mounting plate 42, a hysteresis brake 43, a coupling 44, and a one-way bearing 45; the machine case 10 is provided with a panel 11, the mounting plate 42 is connected with the panel 11 through a stand column 46, the encoder 41 and the hysteresis brake 43 are connected with the mounting plate 42, the unidirectional bearing 45 is embedded in the coupler 44, the hysteresis brake 43 is provided with a first transmission end 431 and a second transmission end 432, the rotating shaft 51 penetrates through the positioning mechanism 20 and is in transmission connection with the unidirectional bearing 45, the coupler 44 is in transmission connection with the first transmission end 431, and the second transmission end 432 is in transmission connection with the encoder 41.

Specifically, the hysteresis brake 43 has an adjustable function for adjusting the magnitude of the load applied to the motor 50. The one-way bearing 45 has the characteristics of locking in forward rotation, locking in reverse rotation and stopping releasing. The encoder 41 is used to test the rotational speed of the motor 50. The unidirectional bearing 45 is fixed in the coupler 44, and when the unidirectional bearing 45 rotates, the coupler 44 rotates along with the unidirectional bearing 45; the first driving end 431 is an upper end, the second driving end 432 is a lower end, the first driving end 431 and the second driving end 432 are the upper end and the lower end of the same rotating shaft, and the rotating speeds of the first driving end 431 and the second driving end 432 are the same. When the rotating shaft 51 rotates, the unidirectional bearing 45 is driven to rotate, the coupler 44 rotates along with the unidirectional bearing 45, the coupler 44 drives the hysteresis brake 43 to rotate, and the hysteresis brake 43 drives the encoder 41 to rotate.

Specifically, through utilizing the principle that the unidirectional bearing 45 positively rotates to lock, reversely rotates and stops to loosen to connect the rotating shaft 51 of the motor 50, the problem of motor shaft injury is avoided, simultaneously, the hysteresis brake 43 is applied to load, so that the size of the load can be accurately adjusted, and the encoder 41 is utilized to test the rotating speed, so that the motor is accurate and efficient.

In one embodiment, the hysteresis brake 43 is disposed on the upper surface of the mounting plate 42, the encoder 41 is disposed on the lower surface of the mounting plate 42, and the second driving end 432 is in driving connection with the encoder 41 through the mounting plate 42.

Specifically, the hysteresis brake 43 is fixed to the upper surface of the mounting plate 42 by a screw, the encoder 41 is fixed to the lower surface of the mounting plate 42 by a screw, and the second driving end 432 transmits kinetic energy to the encoder 41 through the mounting plate 42, so that the stability and efficiency are improved.

In one embodiment, the two sides of the encoder 41 are provided with hanging lugs 411, and the hanging lugs 411 are connected to the mounting plate 42 through the lifting blocks 47.

Specifically, the screws pass through the ear hanging part 411 and the heightening block 47 from bottom to top in sequence and then are fixed on the mounting plate 42, so that the encoder 41 is not easy to shift or loose, and the rotating speed test of the motor 50 is more accurate.

In an embodiment, the positioning mechanism 20 includes a positioning seat 21, the positioning seat 21 is mounted on the panel 11, the motor 50 is mounted on the positioning seat 21, and the rotating shaft 51 is in driving connection with the unidirectional bearing 45 through the positioning seat 21.

Specifically, the positioning seat 21 is fixed on the panel 11 through a screw, and the motor 50 is fixed on the positioning seat 21 through a screw, so that vibration displacement is not easy to occur when the motor 50 rotates, and the testing precision of the motor 50 is improved.

Preferably, the panel 11 is provided with a groove 111 corresponding to the positioning seat 21, the positioning seat 21 is installed in the groove 111, and the groove 111 plays a role in limiting the positioning seat 21, so that the positioning seat 21 is not easy to shift.

In an embodiment, a silica gel pad 22 is disposed between the motor 50 and the positioning seat 21, so as to prevent the motor 50 from being scratched.

In one embodiment, the pre-pressing mechanism 30 includes a pressing rotary cylinder 31, a pressing arm 32, and a pressing block 33; the pressing rotary cylinder 31 is fixed on the panel 11, a piston rod 311 is arranged on the pressing rotary cylinder 31, one end of the pressing arm 32 is connected with the piston rod 311, the other end is connected with the pressing block 33, and the pressing block 33 is used for pressing the motor 50.

Specifically, the motor 50 is vertically placed on the positioning seat 21, and the pressing block 33 is used for pressing the end of the motor 50 to prevent the motor 50 from vibrating during starting. The pressing block 33 is fixed with the pressing arm 32 through a screw, when the motor load testing device is started, the pressing rotary cylinder 31 is pressed down to drive the pressing block 33 to press the motor 50 after rotating by 90 degrees, the pressing rotary cylinder 31 is pressed down to ascend and then rotate by 90 degrees after testing is finished, the tested motor 50 can be taken away, and then the motor 50 to be tested is replaced. The design acts as a pre-load without affecting the placement of the motor 50.

In an embodiment, the motor load testing device further includes a protection mechanism 60, where the protection mechanism 60 includes a front fixing seat 61, a rear fixing seat 62, a front optical axis 63, a rear optical axis 64, a front sliding block 65, a rear sliding block 66, and a protection cover 67, the front optical axis 63 is installed on the front fixing seat 61, the front sliding block 65 is installed on the front optical axis 63, the rear optical axis 64 is installed on the rear fixing seat 62, the rear sliding block 66 is installed on the rear optical axis 64, and one end of the protection cover 67 is connected to the front sliding block 65, and the other end is connected to the rear sliding block 66.

Specifically, the front fixing base 61 and the rear fixing base 62 are both mounted on the left and right sides of the panel 11, the number of the front sliding blocks 65 and the rear sliding blocks 66 is 2, the front sliding blocks 65 and the rear sliding blocks 66 are respectively connected to the front optical axis 63 and the rear optical axis 64 in a sliding manner, one end of the protective cover 67 is connected to the front sliding blocks 65, and the other end is connected to the rear sliding blocks 66, so that the protective cover 67 can slide left and right.

Preferably, the protective cover 21 is made of transparent acrylic, has high strength and does not obstruct the view.

Preferably, the rear fixing seat 62 is mounted on the left and right sides of the panel 11, and each of the left and right sides is provided with a photoelectric sensor 68, when the protective cover 67 is pushed to the left, the left photoelectric sensor 68 triggers the left station of the motor load testing device to start testing the motor 50, at this time, the motor 50 to be tested can be just placed at the right station, after the placement is completed, the protective cover 67 is pushed to the right, the right photoelectric sensor 68 triggers the right station to start testing the motor 50, and the protective mechanism 60 is used for protecting and triggering the left and right stations to start.

In one embodiment, the protecting cover 67 is provided with a handle 671, so that the protecting cover 67 can be pushed conveniently.

In one embodiment, the chassis 10 is further provided with a touch display 12 for setting parameters and displaying test results.

In one embodiment, the chassis 10 is further provided with a start switch 13 for starting the test of the motor 50.

In an embodiment, a control board (not shown) is installed inside the casing 10, the control board is electrically connected to the encoder 41, the hysteresis brake 43, the photoelectric sensor 68, the motor 50, the touch display 12 and the start switch 13, a buzzer and a reset switch are further disposed on the casing 10, which are electrically connected to the control board, when the test value exceeds the set value (including but not limited to the current value, the voltage value and the rotation speed value of the motor, which are all conventional values in the prior art), the buzzer will give an alarm, and the rotary cylinder 31 is pressed down at this time to prevent the defective product from flowing into the next process, and the reset switch is needed to release the locking.

The motor load testing device of the utility model has the following working principle: the motor 50 is placed on the positioning seat 21 of the left station, the power supply of the motor 50 is turned on, the protective cover 67 is pushed to the left, at the moment, the left photoelectric sensor 68 triggers the start of the left station to start testing, the motor 50 starts rotating, torque is transmitted to the hysteresis brake 43 through the one-way bearing 45, the hysteresis brake 43 applies a set load to the motor 50, the encoder 41 records the rotating speed of a pulse signal transmitted to the control panel and displays the rotating speed on the touch display screen 12, meanwhile, a current module and a voltage module in the motor load testing device record the current and the voltage when the motor 50 rotates and transmit the current and the voltage to the control panel through the RS485 interface, and the control panel judges whether the motor is qualified or not through comparing the recorded information such as the current, the voltage, the rotating speed and the like with the set value; when the set test time is reached, if the test is not qualified, the buzzer gives an alarm, the rotary cylinder 31 is pressed down, the continuous locking motor 50 is not reset, the alarm side needs to be released, and the reset can be performed, so that defective products are prevented from flowing into the next working procedure; if the test is qualified, the control board resets the control actions, then the motor 50 is taken out and put into the next procedure, and then the motor 50 to be tested is put into the next procedure, and the operation is circulated.

The motor load testing device is applied to the motor industry to detect whether the finished motor has poor wire breakage or not, and has remarkable effect.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. A motor load testing device, comprising: the machine case is provided with a positioning mechanism, a pre-pressing mechanism and a testing mechanism which are arranged on the machine case; the motor is used for placing the motor, the pre-pressing mechanism is used for pressing the motor, the testing mechanism is used for testing the motor, a rotating shaft is arranged on the motor, and the rotating shaft penetrates through the positioning mechanism and is in transmission connection with the testing mechanism.

2. The motor load testing device of claim 1, wherein the testing mechanism comprises an encoder, a mounting plate, a hysteresis brake, a coupling, and a one-way bearing; the machine case is provided with a panel, the mounting plate is connected with the panel through a stand column, the encoder and the hysteresis brake are connected with the mounting plate, the unidirectional bearing is embedded in the coupler, the hysteresis brake is provided with a first transmission end and a second transmission end, the rotating shaft penetrates through the positioning mechanism and is in transmission connection with the unidirectional bearing, the coupler is in transmission connection with the first transmission end, and the second transmission end is in transmission connection with the encoder.

3. The motor load testing device according to claim 2, wherein the hysteresis brake is disposed on an upper surface of the mounting plate, the encoder is disposed on a lower surface of the mounting plate, and the second driving end is in driving connection with the encoder through the mounting plate.

4. The motor load testing device according to claim 2, wherein ear hanging parts are arranged on two sides of the encoder, and the ear hanging parts are connected to the mounting plate through heightening blocks.

5. The motor load testing device of claim 2, wherein the positioning mechanism comprises a positioning seat, the positioning seat is mounted on the panel, the motor is mounted on the positioning seat, and the rotating shaft passes through the positioning seat to be in transmission connection with the unidirectional bearing.

6. The motor load testing device of claim 5, wherein a silica gel pad is disposed between the motor and the positioning seat.

7. The motor load testing device according to claim 2, wherein the pre-pressing mechanism comprises a pressing rotary cylinder, a pressing arm and a pressing block; the pressing rotary cylinder is fixed on the panel, a piston rod is arranged on the pressing rotary cylinder, one end of the pressing arm is connected with the piston rod, the other end of the pressing arm is connected with the pressing block, and the pressing block is used for pressing the motor.

8. The motor load testing device of claim 2, further comprising a protection mechanism, wherein the protection mechanism comprises a front fixing base, a rear fixing base, a front optical axis, a rear optical axis, a front sliding block, a rear sliding block, and a protection cover, the front optical axis is mounted on the front fixing base, the front sliding block is mounted on the front optical axis, the rear optical axis is mounted on the rear fixing base, the rear sliding block is mounted on the rear optical axis, and one end of the protection cover is connected to the front sliding block, and the other end is connected to the rear sliding block.

9. The motor load testing device of claim 8, wherein the protective cover is provided with a pull handle.

10. The motor load testing device according to claim 1, wherein a touch display screen is further arranged on the chassis.