A fatigue testing device for a drum motor

Abstract

The application relates to a fatigue test device of a drum motor and relates to the technical field of motor performance test; the device comprises a machine base, a front end support and a rear end support arranged on the machine base, a drum motor is placed on the front end support, a slot for inserting the drum motor is arranged in the side wall of the rear end support, a moving rod is slidably connected to the bottom of the machine base along the length direction of the machine base, push plates are arranged at the two ends of the moving rod, and the drum motor and the slot are located between the two push plates; a driving piece for driving the moving rod to reciprocatingly slide is arranged in the rear end support, a clamping assembly is further arranged on the machine base, a discharging assembly is arranged on the front end support, the clamping assembly is used for releasing the clamping of the end part of the drum motor when the moving rod moves away from the slot and clamping the end part of the drum motor when the moving rod moves towards the slot, and the discharging assembly pushes the drum motor away from the front end support; the application has the effect of realizing efficient and convenient test on batches of drum motors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor performance testing, in particular to a fatigue testing device for a drum motor. BACKGROUND

[0002] Drum motors are widely used in express delivery, food, tobacco, transportation and other industries. For a permanent magnet direct drive drum structure, it mainly consists of a drum body part, a motor part and a support part. Due to the diversity of application scenarios, the performance requirements of the product itself are also very high. In order to improve the product quality, strict detection is needed to meet the corresponding technical requirements.

[0003] The existing fatigue testing device for a drum motor, as shown in FIG. Figure 1 , includes a base 1, a clamping assembly 2, a front end support 3 and a rear end support 4 installed on the base 1, the rear end support 4 is provided with a bearing at the tail, and the drum motor 9 is inserted into the bearing to realize the rotary connection between the drum motor 9 and the rear end support 4. The front end support 3 includes a seat body and a rubber-coated bearing 32 rotatably connected to the seat body, and the seat body is provided with a circular arc surface, and the rubber-coated bearing 32 is arranged below the circular arc surface of the seat body, and the rubber-coated bearing 32 is used to fit the rotor of the drum motor 9; in order to more completely simulate the working condition of the drum motor 9 in actual use, when the drum motor 9 rotates, the rotor (i.e. the shell) of the drum motor 9 fits the rubber-coated bearing 32. Due to the characteristics of the rubber-coated bearing 32 with high friction, the rotor of the drum motor 9 contacts the rubber-coated bearing 32 to simulate the working condition of the drum motor 9 in contact with the belt during work; due to the characteristics of the drum motor 9 as an external rotor motor structure, the stator needs to be fixed. Through the analysis and optimization of the structure of the drum motor 9 installed on the whole machine equipment, the clamping assembly 2 is used to lock the stator part of the drum motor 9 to perfectly simulate the structural requirements of the product installed on the whole machine equipment.

[0004] For the related technology in the above, the inventor finds that when it is necessary to detect a batch of drum motors, the detection personnel need to manually unscrew the bolts first to separate the two clamping plates from each other, then take out the drum motor that has completed the test from the bearing of the rear end support, and then replace the drum motor to be tested. The above operation increases the labor intensity of the operator, and also reduces the test efficiency of batch testing, so it needs to be improved. SUMMARY

[0005] In order to improve the test efficiency of the fatigue test of the drum motor, the present application provides a fatigue testing device for a drum motor.

[0006] The application provides a fatigue testing device for a drum motor.

[0007] The fatigue testing device for the drum motor comprises a base, a front end support and a rear end support arranged on the base, the drum motor is arranged on the front end support, a slot for inserting the drum motor is arranged on the side wall of the rear end support, a moving rod is slidably connected to the bottom of the base along the length direction of the base, push plates are arranged on both ends of the moving rod, and the drum motor and the slot are located between the two push plates; a driving member for driving the moving rod to reciprocatingly slide is arranged in the rear end support, a clamping assembly is further arranged on the base, a discharging assembly is arranged on the front end support, the clamping assembly is used for releasing the clamping of the end of the drum motor when the moving rod moves away from the slot and clamping the end of the drum motor when the moving rod moves towards the slot, and the discharging assembly pushes the drum motor away from the front end support.

[0008] By adopting the above technical scheme, the drum to be detected is arranged on the front end support, then the moving rod is driven by the driving member to move towards the slot, in the moving process, the push plates on both ends of the moving rod are attached to the end of the drum motor and drive the drum motor to move, so that the rear end of the drum motor is inserted into the slot, then the clamping assembly clamps the end of the drum motor in the moving process of the moving rod, the drum motor is conveniently installed on the base, then the drum motor is started to realize the testing of the drum motor, when the testing of the drum motor is completed, the moving rod is driven by the driving member to move away from the slot, in the moving process, the clamping assembly releases the clamping of the drum motor, when the moving continues, the push plate close to the slot pushes the end of the drum motor away from the rear end support, then the drum motor is pushed away from the front end support by the discharging assembly, and the automatic loading and unloading of the drum motor are realized.

[0009] Preferably, the clamping assembly comprises a bidirectional screw rod, clamping plates sleeved on each end of the bidirectional screw rod, a first gear outside the smooth position of the bidirectional screw rod, and a first rack meshed with the first gear, the end of the first rack is connected to the lower surface of the moving rod, and the length direction of the first rack is parallel to the length direction of the moving rod; each end of the bidirectional screw rod corresponds to a clamping plate, and a gap for inserting the end of the drum motor is reserved between the clamping plates.

[0010] By adopting the above technical scheme, in the moving process of the moving rod, the first rack moves with the moving rod, and since the first rack and the first gear are in meshing connection with each other, in the moving process of the first rack, the first gear will rotate and drive the bidirectional screw rod to rotate, thereby making the two clamping plates close to or away from each other, and when the moving rod moves away from the bidirectional screw rod, the two clamping plates close to each other and clamp the end part of the drum motor in the gap, and correspondingly, when the moving rod moves towards the bidirectional screw rod, the two clamping plates will move away from each other and release the clamping of the end part of the drum motor in the gap.

[0011] As a preferred, the unloading assembly comprises a rotating shaft connected to the front end support, an unloading arc plate sleeved on the rotating shaft, and a cylinder arranged on the front end support; the front end support is provided with an arc-shaped notch for inserting the unloading arc plate, the drum motor is inserted on the unloading arc plate, the cylinder body is hinged to the inside of the front end support, and the cylinder driving end is hinged to one end of the unloading arc plate away from the rotating shaft, and the cylinder is used to push the unloading arc plate to make the unloading arc plate rotate away from the cylinder when the driving end of the cylinder is extended.

[0012] By adopting the above technical scheme, when the clamping of the end part of the drum motor by the clamping assembly is released, the cylinder is started, the end part of the unloading arc plate is pushed by the driving end of the cylinder to make the unloading arc plate rotate around the rotating shaft, since the drum motor is located on the unloading arc plate, the unloading arc plate will drive the drum motor to separate from the front end support during rotation to achieve unloading, and when the driving end of the cylinder is retracted into the cylinder body, the unloading arc plate will be re-rotated into the arc-shaped notch under the driving of the cylinder.

[0013] As a preferred, the base is provided with a chamber, the moving rod is located in the chamber, the side wall of the moving rod is further provided with a docking plate, and the end wall of the chamber close to the insertion slot is further provided with a distance measuring sensor, the distance measuring sensor is used to detect the distance value between the distance measuring sensor and the docking plate, the distance measuring sensor and the cylinder are electrically connected with a controller, the driving member is controlled by the controller, and the controller is used to receive the distance value and start the cylinder and control the driving member to stop moving the moving rod when the distance value increases to a specified distance.

[0014] By adopting the above technical scheme, when the moving rod drives the docking plate to move away from the insertion slot, the distance between the docking plate and the distance measuring sensor gradually increases, and when the docking plate measured by the distance measuring sensor increases to a specified distance, at this time, the drum motor is completely separated from the insertion slot, at this time, the controller will control the cylinder to start, and the drum motor is pushed away from the front end support by the rotation of the unloading arc plate to achieve automatic unloading.

[0015] Preferably, the upper surface of the base near the rotating shaft is further provided with a discharging channel, one end of the discharging channel away from the rotating shaft is provided with a buffer, and the buffer is used to reduce the moving speed of the drum motor when moving from the front support to the discharging channel.

[0016] By using the above technical scheme, when the drum motor is separated from the front support under the action of the discharging assembly, the discharging channel can be used to receive the drum motor. In addition, the discharging channel is arranged in an inclined state to guide the discharge of the drum motor, which facilitates the drum motor to quickly separate from the base under the action of gravity and guidance. The buffer is arranged to reduce the moving speed of the drum motor when moving from the front support to the discharging channel, so as to reduce the collision between the drum motor and other drum motors on the discharging channel or the collision between the drum motor and the inner wall of the discharging channel due to the too fast moving speed of the drum motor, thereby preventing the damage of the drum motor shell.

[0017] Preferably, the buffer comprises an air bag arranged on the discharging channel, a pipeline communicated with the air bag, a piston rod inserted into the pipeline, a second rack arranged on the outer surface of the piston rod, a reversing gear meshed with the second rack, and a second gear sleeved on the rotating shaft. The second gear is meshed with the reversing gear, and the inner wall of the piston rod is attached to the inner wall of the pipeline.

[0018] By using the above technical scheme, a certain amount of gas can be pre-stored in the air bag. When the rotating shaft rotates to drive the discharging arc plate to rotate towards the discharging channel, the second gear rotates, thereby driving the reversing gear to rotate, and the rotation of the reversing gear drives the second rack and the piston rod to move towards the air bag. In the moving process, the piston rod fills the gas in the pipeline into the air bag, so that the air bag is inflated. The inflated air bag can protect and buffer the drum motor falling onto the discharging channel. When the discharging arc plate is reversed and reset under the driving of the air cylinder, the rotating shaft is reversed, thereby driving the piston rod to move away from the air bag, and thereby part of the gas in the air bag is sucked into the pipeline, so that the volume of the air bag is reduced, and thereby the drum motor can pass through the air bag and move down along the inclined surface of the discharging channel.

[0019] Preferably, the upper surface of the base near the front support is further provided with a feeding frame, a plurality of drum motors to be detected are arranged in the feeding frame, a feeding gap is arranged in the side wall of the feeding frame and located at the lower end thereof, a feeding arc plate is rotatably connected to the base, the feeding arc plate is located in the feeding gap and used to receive the drum motors in the feeding frame, a baffle is arranged at one end of the feeding arc plate away from the rotating connection with the base, and a rotating member for driving the feeding arc plate to rotate is arranged on the base and controlled by a controller.

[0020] By adopting the technical scheme, after the controller controls the cylinder to start and the driving end of the cylinder to reset and retract, the controller controls the rotating piece to drive the feeding arc plate to rotate, so that the roller motor on the feeding arc plate is inserted into the arc-shaped gap under the driving of the feeding arc plate, and at this time the discharging arc plate supports the roller motor; and the baffle rotates with the feeding arc plate and closes the feeding gap, preventing the roller motor in the feeding frame from moving downward, so that when the rotating piece drives the feeding arc plate to reverse and reset, the downward roller motor in the feeding frame can fall onto the feeding arc plate, facilitating subsequent feeding.

[0021] Preferably, the feeding arc plate and the discharging arc plate are both provided with a flexible pad.

[0022] By adopting the technical scheme, the flexible pad increases the softness of the contact surface between the feeding arc plate and the roller motor and the contact surface between the discharging arc plate and the roller motor, thereby protecting the roller motor.

[0023] Preferably, the position where the front end support and the discharging channel are connected is further provided with a rubber spacer.

[0024] By adopting the technical scheme, the rubber spacer can buffer the movement of the roller motor pushed from the discharging arc plate to the discharging channel, and can block the roller motor when the roller motor is transported into the arc-shaped gap by the feeding arc plate, so as to avoid the roller motor from leaving the arc-shaped gap.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] By controlling the driving piece to drive the moving rod to move, the clamping of the roller motor on the machine base that has completed the test is released during the movement of the moving rod, and then the roller motor is pushed out of the slot, and finally when the moving rod moves to the specified position, the controller starts the cylinder to drive the discharging arc plate to rotate, and the roller motor on the front end support is pushed onto the discharging channel, realizing automatic discharging; and when the cylinder drives the discharging arc plate to reset and re-insert into the arc-shaped gap, the controller drives the rotating piece to drive the feeding arc plate to push the roller motor on the feeding arc plate into the arc-shaped gap, realizing automatic feeding of the roller motor. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structure diagram of an existing fatigue test device for a roller motor in the background art.

[0028] Figure 2 A structure diagram of a fatigue test device for a roller motor in an embodiment.

[0029] Figure 3 A sectional view for embodying the positional relationship among the moving rod, the push plate, and the machine base cavity in an embodiment.

[0030] Figure 4 is a schematic diagram for embodying the internal structure of the internal chamber in the embodiment.

[0031] Figure 5 is a sectional view for embodying the structure of the clamping assembly in the embodiment.

[0032] Figure 6 is a sectional view for embodying the positional relationship between the front end support, the discharge passage, the buffer, and the feeding arc plate in the embodiment.

[0033] Figure 7 is Figure 6 is an enlarged schematic diagram for embodying the structure at A in the embodiment.

[0034] BRIEF DESCRIPTION OF DRAWINGS 1, machine base; 11, chamber; 12, moving rod; 121, push plate; 122, butt joint plate; 2, clamping assembly; 21, bidirectional screw rod; 22, clamping plate; 23, first gear; 24, first rack; 25, bolt; 3, front end support; 31, arc-shaped notch; 32, rubber-coated bearing; 4, rear end support; 41, insertion slot; 42, driving member; 5, discharge assembly; 51, rotating shaft; 52, discharge arc plate; 53, air cylinder; 6, discharge passage; 61, rubber spacer; 62, buffer; 621, air bag; 622, pipeline; 623, piston rod; 624, second rack; 625, reversing gear; 626, second gear; 7, feeding frame; 71, feeding notch; 72, feeding arc plate; 73, baffle; 74, flexible cushion layer; 8, controller; 81, distance measuring sensor; 9, roller motor. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying drawings. Figures 2-7 The present application is further described in detail.

[0036] Embodiments of the present application disclose a fatigue test device of a roller motor. Referring to Figure 2 and Figure 3, the fatigue test device of the drum motor 9 comprises a base 1, a clamping assembly 2, a front end support 3 and a rear end support 4 which are sequentially arranged on the upper surface of the base 1 along the length direction of the base 1; the upper surface of the front end support 3 is provided with an arc-shaped notch 31 for inserting the drum motor 9, and the side wall of the front end support 3 close to the arc-shaped notch 31 is rotationally connected with a rubber-coated bearing 32, and the side wall of the rear end support 4 is provided with a slot 41 for inserting the end of the drum motor 9; before the fatigue test of the drum motor 9, the drum motor 9 is placed on the arc-shaped notch 31 so that the outer circumferential wall of the drum motor 9 is in contact with the rubber-coated bearing 32, and the end of the drum motor 9 is inserted into the slot 41, the front end of the drum motor 9 is clamped by the clamping assembly 2, the installation of the drum motor 9 is realized, then the drum motor 9 is started, and the drum motor 9 drives the rubber-coated bearing 32 to rotate when rotating, so as to simulate the working condition that the electric drum is attached to the belt when working.

[0037] With reference to Figure 3 , Figure 4 and Figure 5 , the bottom of the base 1 is provided with a chamber 11 along the length direction of the base 1, the clamping assembly 2 comprises a bidirectional screw rod 21 rotationally connected in the chamber 11, clamping plates 22 threadedly sleeved at each end of the bidirectional screw rod 21, a first gear 23 sleeved outside the bidirectional screw rod 21, and a first rack 24 meshingly connected to the first gear 23; the number of the clamping plates 22 is two, and each end of the bidirectional screw rod 21 corresponds to one clamping plate 22, one end of the clamping plate 22 away from the bidirectional screw rod 21 is located on the upper surface of the base 1, the circumferential wall at the central position of the bidirectional screw rod 21 is smooth, i.e. without thread, the first gear 23 is fixedly sleeved at the smooth position of the central bidirectional screw rod 21, and the first rack 24 is slidingly connected in the chamber 11 along the length direction of the chamber 11; the rubber pads can be fixedly bonded on the side walls of the two clamping plates 22 facing each other, so as to avoid that the clamping plates 22 cause abrasion to the end of the drum motor 9 when clamping the end of the drum motor 9.

[0038] With reference to Figure 3 and Figure 4 , the chamber 11 is further slidingly connected with a moving rod 12, the first rack 24 is fixedly connected to the lower surface of the moving rod 12, and the length direction of the moving rod 12 is parallel to the sliding direction of the first rack 24, and the two ends of the moving rod 12 are both perpendicularly welded with push plates 121, one of the push plates 121 penetrates through the base 1 and is located at one end of the clamping assembly 2 away from the front end support 3, and the other push plate 121 is located in the slot 41, and the drum motor 9 is located between the two push plates 121; the rear end support 4 is provided with a driving member 42, which can be a structure combined with a screw rod and a motor, the moving rod 12 is threadedly sleeved on the screw rod, and the driving end of the motor is connected with the end of the screw rod, so as to realize the reciprocating sliding of the moving rod 12.

[0039] With reference to Figure 3 ,Figure 4 And Figure 5 When the drum motor 9 is inserted into the slot 41 and fixed to the base 1 by the clamping assembly 2, a gap is reserved between the push plate 121 in the slot 41 and the end of the drum motor 9, and the other push plate 121 is attached to the front end of the drum motor 9; at this time, if the moving rod 12 is moved away from the slot 41 by the driving part 42, the push plate 121 in the slot 41 gradually approaches the rear end wall of the drum motor 9, and the bidirectional screw rod 21 is rotated under the drive of the first rack 24 and the first gear 23, so that the two clamping plates 22 are away from each other, thereby releasing the clamping of the front end of the drum motor 9; after the push plate 121 is attached to the rear end wall of the drum motor 9, the moving rod 12 continues to move, and at this time the push plate 121 in the slot 41 pushes the drum motor 9 out of the slot 41.

[0040] Referring to Figure 4 , the side wall of the moving rod 12 is fixedly sleeved with a docking plate 122, and the inner end wall of the chamber 11 close to the slot 41 is provided with a distance measuring sensor 81, and the distance measuring sensor 81 is electrically connected with a controller 8, and the controller 8 is specifically a PLC controller, and the air cylinder 53 is electrically connected with the controller 8, and the driving part 42 is controlled by the controller 8, and the distance measuring sensor 81 is used to detect the distance value between it and the docking plate 122, and the controller 8 is used to receive the distance value detected by the distance measuring sensor 81, and when the distance value increases to a specified distance, the air cylinder 53 is controlled to start, and the driving part 42 is controlled to stop moving the moving rod 12. Wherein, the specified distance refers to the distance between the docking plate 122 and the detection end of the distance measuring sensor 81 when the push plate 121 in the slot 41 pushes the drum motor 9 originally inserted into the slot 41 to the outside of the slot 41.

[0041] Referring to Figure 6 And Figure 7 , the base 1 is provided with a discharging assembly 5 close to the front end support 3, and the discharging assembly 5 comprises a rotating shaft 51, a discharging arc plate 52 and an air cylinder 53; the rotating shaft 51 is rotatably connected to the upper surface of one side of the front end support 3, the discharging arc plate 52 is fixedly sleeved on the rotating shaft 51, the curvature of the discharging arc plate 52 is matched with the curvature of the arc-shaped notch 31, and the discharging arc plate 52 is inserted into the arc-shaped notch 31; the air cylinder 53 is embedded in the inner wall of the arc-shaped notch 31, and the cylinder body of the air cylinder 53 is hingedly arranged with the inner wall of the arc-shaped notch 31, the inner wall of the arc-shaped notch 31 is provided with a clearance hole for the air cylinder 53 to be inserted and swing, and the driving end of the air cylinder 53 is hingedly connected to one end of the discharging arc plate 52 away from the rotating shaft 51.

[0042] Referring to Figure 6 And Figure 7The side of the base 1 close to the rotating shaft 51 is also provided with a discharging channel 6, the upper surface of the discharging channel 6 close to the rotating shaft 51 is fixedly bonded with a rubber spacer 61, and the end of the discharging channel 6 away from the front end support 3 is provided with a vertical downward inclined setting; the discharging channel 6 is used for receiving the drum motor 9 pushed out from the discharging arc plate 52, and the discharging channel 6 is also provided with a buffer 62.

[0043] With reference to Figure 6 And Figure 7 The buffer 62 specifically includes an air bag 621, a pipeline 622, a piston rod 623, a second rack 624, a reversing gear 625 and a second gear 626; the air bag 621 is inserted through the upper surface of the discharging track close to the base 1, the air bag 621 is pre-installed with gas, the air bag 621 is communicated with the pipeline 622, the pipeline 622 is inserted into the bottom of the base 1, the piston rod 623 is inserted into the pipeline 622, the peripheral wall of the piston rod 623 is attached to the inner peripheral wall of the pipeline 622, and a rubber pad can be embedded in the peripheral wall of the piston rod 623 to realize the sealing between the piston rod 623 and the inner wall of the pipeline 622; the second rack 624 is fixedly bonded to the side wall of the pipeline 622, and the length direction of the second rack 624 is parallel to the length direction of the piston rod 623; the reversing gear 625 is rotationally connected to the inner wall of the chamber 11 through a rotating rod, the second rack 624 is engaged with the reversing gear 625, the second gear 626 is fixedly sleeved on the outside of the rotating shaft 51, the second gear 626 is engaged with the reversing gear 625, and when the discharging arc plate 52 rotates towards the discharging channel 6, the piston rod 623 will move towards the air bag 621 under the action of the second rack 624, the second gear 626 and the reversing gear 625, so that the air bag 621 is inflated.

[0044] With reference to Figure 5 And Figure 6 The upper surface of the base 1 is welded with a feeding frame 7, the feeding frame 7 is located on the side of the front end support 3 away from the discharging channel 6, a plurality of drum motors 9 are inserted into the feeding frame 7, and the drum motors 9 are sequentially stacked along the height direction of the feeding frame 7; the side wall of the feeding frame 7 towards the discharging channel 6 is provided with a feeding gap 71, and the clamping plates 22 are located below the feeding gap 71, so that the feeding frame 7 will not hinder the movement of the two clamping plates 22 away from each other.

[0045] With reference to Figure 6 The upper surface of the base 1 close to the feeding gap 71 is rotationally connected with a feeding arc plate 72, the rotating center of the feeding arc plate 72 is located on the same vertical line as the rotating center of the discharging arc plate 52, and the feeding arc plate 72 is provided with a plurality of feeding grooves 721. Figure 6The mark point B in the figure shows; The rotating member is arranged on the base 1 for driving the feeding arc plate 72 to rotate, and the rotating member is a motor. The rotating member is installed on the rear end support 4, and the driving end of the rotating member is connected to the rotating connection position of the feeding arc plate 72 and the base 1, so as to drive the feeding arc plate 72 to rotate. The rotating member is controlled by the controller 8. The controller 8 is used for starting to control the rotating member to drive the feeding arc plate 72 to rotate towards the front end support 3 after a specified time length of the cylinder 53 is started. The specified time length refers to the time length used for the driving end of the cylinder 53 to be extended to be completely retracted into the cylinder.

[0046] Referring to Figure 6 The end of the feeding arc plate 72 away from the rotating connection position of the feeding arc plate 72 and the base 1 is welded with a baffle 73. The baffle 73 is made of a material with elastic deformation force. The baffle 73 is arc-shaped. The arc of the baffle 73 satisfies that when the distance between the position where the baffle is connected with the feeding arc plate 72 and the rotating center B is taken as the diameter, the arc of the circle formed by taking the rotating center B as the circle coincides with the arc of the baffle 73. When the feeding arc plate 72 rotates with the rotating center B, the baffle 73 rotates with the feeding arc plate 72 and can rotate to the feeding gap 71 to block the falling of the next drum motor 9 in the feeding frame 7. The feeding arc plate 72 and the discharging arc plate 52 are fixedly bonded with flexible pads 74 made of rubber material, so as to be in contact with the drum motor 9.

[0047] The implementation principle of the fatigue test device for the drum motor is as follows. The drum motor 9 is placed on the front end support 3, so that the front end of the drum motor 9 is inserted between the two clamping plates 22, and the front end of the drum motor 9 is attached to the side wall of the push plate 121. Then, the controller 8 controls the driving member 42 to drive the moving rod 12 to move towards the insertion slot 41. At this time, the drum motor 9 is gradually inserted into the insertion slot 41 under the pushing of the push plate 121. At the same time, the movement of the moving rod 12 drives the bidirectional screw rod 21 to rotate, so that the two clamping plates 22 are close to each other. When the end of the drum motor 9 is inserted into the insertion slot 41 to a specified depth, the clamping plate 22 abuts against the front end of the drum motor 9, so as to clamp the drum motor 9. At this time, the drum motor 9 can be started to test the drum motor 9.

[0048] After the test is completed, the driving member 42 is controlled again by the controller 8 to start the movement of the moving rod 12 in the direction away from the slot 41, in the movement process, the two clamping plates 22 first release the clamping of the drum motor 9, and then push the drum motor 9 through the push plate 121 in the slot 41, when the end of the drum motor 9 is completely separated from the slot 41, the distance value detected by the distance sensor 81 is greater than the specified distance, at this time the controller 8 starts the air cylinder 53 to make the unloading arc plate 52 rotate around the rotating shaft 51, at this time the distance between the two clamping plates 22 is such that the clamping plates 22 will not hinder the rotation of the drum motor 9 with the unloading arc plate 52, so that the drum motor 9 on the unloading arc plate 52 is pushed to the unloading passage 6 by the unloading arc plate 52;

[0049] At the same time, due to the rotation of the rotating shaft 51, the piston rod 623 pushes the gas in the pipe 622 into the air bag 621, so that the air bag 621 is inflated to play a buffering role on the drum motor 9, then the air cylinder 53 drives the unloading arc plate 52 to reset and reinsert into the arc-shaped gap 31, after the controller 8 starts the air cylinder 53 for a specified time, the rotating member is started to rotate the feeding arc plate 72, so that the drum motor 9 on the upper surface thereof is pushed to the unloading arc plate 52 of the arc-shaped gap 31, to realize batch efficient detection of the drum motor 9.

[0050] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A fatigue testing device of a drum motor, comprising a base (1), a front end support (3) and a rear end support (4) arranged on the base (1), and a drum motor (9) placed on the front end support (3), characterized in that: The rear end support (4) is provided with a slot (41) for inserting the drum motor (9), the base (1) is slidably connected with a moving rod (12) along the length direction, the moving rod (12) is provided with a push plate (121) at each end, and the drum motor (9) and the slot (41) are located between the two push plates (121); the rear end support (4) is provided with a driving member (42) for driving the moving rod (12) to slide back and forth, the base (1) is further provided with a clamping assembly (2), the front end support (3) is provided with a discharging assembly (5), the clamping assembly (2) is used for releasing the clamping of the end of the drum motor (9) when the moving rod (12) moves away from the slot (41), and clamping the end of the drum motor (9) when moving towards the slot (41); the discharging assembly (5) pushes the drum motor (9) away from the front end support (3); The clamping assembly (2) comprises a bidirectional screw rod (21), a clamping plate (22) threadedly connected to each end of the bidirectional screw rod (21), a first gear (23) externally connected to a smooth position of the bidirectional screw rod (21), and a first rack (24) engagedly connected to the first gear (23), the first rack (24) is connected to the lower surface of the moving rod (12) at the end, and the length direction of the first rack (24) is parallel to the length direction of the moving rod (12); each end of the bidirectional screw rod (21) corresponds to a clamping plate (22), and a gap is reserved between the clamping plates (22) for inserting the end of the drum motor (9); The discharging assembly (5) comprises a rotating shaft (51) rotatably connected to the front end support (3), a discharging arc plate (52) sleeved on the rotating shaft, and a pneumatic cylinder (53) provided on the front end support (3); the front end support (3) is provided with an arc-shaped notch (31) for inserting the discharging arc plate (52), the drum motor (9) is inserted into the discharging arc plate (52), the cylinder body of the pneumatic cylinder (53) is hinged to the inside of the front end support (3), and one end of the pneumatic cylinder (53) away from the rotating shaft (51) is hinged to the discharging arc plate (52), the pneumatic cylinder (53) is used for pushing the discharging arc plate (52) when the driving end of the pneumatic cylinder (53) is extended, so that the discharging arc plate (52) rotates away from the pneumatic cylinder (53).

2. Fatigue testing apparatus for a drum motor according to claim 1, characterized in that: The base (1) is provided with a cavity (11) at the bottom, the moving rod (12) is located in the cavity (11), the side wall of the moving rod (12) is further provided with a docking plate (122), a distance measuring sensor (81) is further provided on the end wall of the cavity (11) close to the slot (41), the distance measuring sensor (81) is used for detecting the distance value between the distance measuring sensor (81) and the docking plate (122), the distance measuring sensor (81) and the pneumatic cylinder (53) are both electrically connected with a controller (8), the driving member (42) is controlled by the controller (8), and the controller (8) is used for receiving the distance value and starting the pneumatic cylinder (53) and controlling the driving member (42) to stop moving the moving rod (12) when the distance value increases to a specified distance.

3. The fatigue testing apparatus for a drum motor of claim 1, wherein: The upper surface of the base (1) near the rotating shaft (51) is also provided with a discharging channel (6), one end of the discharging channel (6) far from the rotating shaft (51) is vertically and downwardly inclined; one end of the discharging channel (6) near the rotating shaft (51) is provided with a buffer (62), and the buffer (62) is used to reduce the moving speed of the drum motor (9) when moving from the front end support (3) to the discharging channel (6).

4. The fatigue testing apparatus for a drum motor according to claim 3, wherein: The buffer (62) comprises an air bag (621) arranged on the discharging channel (6), a pipeline (622) communicated with the air bag (621), a piston rod (623) inserted into the pipeline (622), a second rack (624) arranged on the outer surface of the piston rod (623), a reversing gear (625) engaged with the second rack (624), and a second gear (626) sleeved on the rotating shaft (51); the second gear (626) is engaged with the reversing gear (625), and the inner wall of the piston rod (623) is attached to the inner wall of the pipeline (622).

5. The fatigue testing apparatus for a drum motor of claim 1, wherein: The upper surface of the base (1) near the front end support (3) is also provided with a feeding frame (7), a plurality of drum motors (9) to be detected are arranged in the feeding frame (7), a feeding gap (71) is formed in the side wall of the feeding frame (7) and located at the lower end thereof, and a feeding arc plate (72) is rotatably connected to the base (1), the feeding arc plate (72) is located in the feeding gap (71) and used to receive the drum motor (9) in the feeding frame (7); a baffle (73) is arranged at one end of the feeding arc plate (72) away from the rotating connection position of the feeding arc plate (72) and the base (1), and a rotating member for driving the feeding arc plate (72) to rotate is arranged on the base (1), and the rotating member is controlled by the controller (8).

6. Fatigue testing apparatus for a drum motor according to claim 5, characterized in that: The side walls of the feeding arc plate (72) and the discharging arc plate (52) are both provided with flexible pads (74).

7. The fatigue testing apparatus of a drum motor according to claim 5, wherein: The position where the front end support (3) and the discharging channel (6) are connected is also provided with a rubber spacer (61).

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