Harassment power testing device

Abstract

The utility model provides a disturbance power testing device which comprises a track groove, an absorption clamp which moves linearly along the track groove, a transmission lead screw which extends along the track groove and a driving motor which drives the lead screw to rotate, the absorption clamp is provided with a screw hole, and the transmission lead screw is arranged in the screw hole in a transmission and penetrating mode. The absorption clamp is provided with a detection hole in the movement direction and is provided with a brake mechanism, and a cable to be detected is hung above the track groove in the same direction and penetrates through the detection hole. The bottom of the absorption clamp is connected with a traveling cable in a dragging mode, and a traveling cable box extending in the same direction as the track groove is arranged below the track groove. The absorption clamp is driven by the driving motor and the lead screw to move, and the brake mechanism is additionally arranged, so that the movement speed of the absorption clamp can be accurately controlled, the absorption clamp can be stopped immediately after power failure, and the radiation acquisition precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a disturbance power testing device. Background Art

[0002] The external radiation emission test items of household electrical appliances include interference power test and radiation interference field strength test. The interference power test is mainly to evaluate the radiation interference generated by each input and output port of the tested sample separately. Usually, a test device equipped with an absorbing clamp is used to perform interference power test on the power cord. A roller is installed at the bottom of the absorbing clamp. During the test, the cable to be tested (the power cord of the tested sample) is passed through the detection hole of the absorbing clamp, and then the absorbing clamp is moved slowly and uniformly along the track to collect real-time radiation data of each section of the cable to be tested.

[0003] There are two ways to drive the absorbing clamp in the test device. One is manual pushing, but it is difficult to control the forward speed of the absorbing clamp and maintain a constant speed with manual driving; the other is driven by a motor. The driving motor is installed on the absorbing clamp to drive the roller forward. However, since the driving motor is relatively close to the absorbing clamp, the radiation generated by the driving motor will affect the collection accuracy of the absorbing clamp. After the driving motor is powered off, the absorbing clamp will continue to move a short distance under the action of inertia, which will also cause the collected radiation signal to be higher. Utility Model Content

[0004] In view of the defects of the background technology, the utility model proposes a disturbance power testing device, which drives the absorbing clamp to move through a driving motor and a transmission screw, and is equipped with a brake mechanism, which can accurately control the movement speed of the absorbing clamp and stop when the power is cut off, thereby improving the radiation collection accuracy.

[0005] The utility model provides a disturbance power test device, comprising a track groove, an absorbing clamp moving linearly along the track groove, a driving screw extending along the track groove and a driving motor driving the driving screw to rotate, the absorbing clamp is provided with a screw hole, and the driving screw is driven through the screw hole;

[0006] The absorbing clamp is provided with detection holes along the moving direction and a brake mechanism. The cable to be tested is suspended above the track groove in the same direction and passes through the detection holes.

[0007] The bottom of the absorbing clamp is dragged and connected with a traveling cable, and a traveling cable box extending in the same direction as the track groove is provided below the track groove.

[0008] Preferably, the track groove includes two left-right symmetrical L-shaped tracks, with a track gap between the two L-shaped tracks, the transmission screw is centrally arranged in the track gap, the drive motor is located on the extension line of one end of the track groove, and the transmission screw passes through the end plate of the track groove and is connected to the rotating shaft of the drive motor.

[0009] Preferably, the brake mechanism includes a brake pad, a lifting seat and an electromagnet;

[0010] The absorbing clamp includes a detection part and a traveling cable connecting part. The detection part is slidably arranged in the track groove, the traveling cable connecting part passes through the track gap and sinks under the track groove, the traveling cable connecting part extends laterally out of two layers of support plates, the electromagnet is installed on the bottom support plate, the lifting seat is elastically installed on the top support plate, a magnetic suction column is provided at the bottom of the lifting seat near the electromagnet, the brake pad is fixed on the top of the lifting seat, and the top of the brake pad is facing the bottom of the L-shaped track.

[0011] Preferably, the bottom of the L-shaped track is provided with an inverted trapezoidal friction strip extending in the same direction, and the brake pad is provided with a V-shaped notch matching with the inverted trapezoidal friction strip.

[0012] Preferably, a set of brake mechanisms is provided on each of the left and right sides of the absorbing clamp, and each L-shaped track is provided with an inverted trapezoidal friction strip corresponding to the shape of the brake pad.

[0013] Preferably, the left and right sides of the detection part respectively extend outwardly with limit fins, and the side plates of each L-shaped track are provided with limit grooves extending in the same direction, and the limit fins are slidably arranged in the limit grooves.

[0014] Preferably, a group of rollers are respectively provided on both sides of the bottom of the detection part, and each group of rollers moves along an L-shaped track located on the same side.

[0015] Preferably, a suspension arm for supporting the cable to be tested is provided on the top of the absorbing clamp, and a wire loop for guiding the cable to be tested is provided at the front end of the suspension arm.

[0016] Preferably, the traveling cable connecting portion is provided with a traveling cable connector and a flexible wire sleeve, and the traveling cable is connected to the traveling cable connector after passing through the flexible rubber sleeve.

[0017] Preferably, a cable hanging rod to be tested is provided at each end of the track groove in the long direction.

[0018] The beneficial effects of the utility model include: the interference power testing device drives the absorbing clamp to move through the driving motor and the lead screw, and is equipped with a brake mechanism, which can accurately control the movement speed of the absorbing clamp and stop when the power is cut off, thereby improving the radiation collection accuracy; the accompanying cable is easily damaged when dragged on the ground, and the frequent bending at the joints can easily damage the accompanying cable joints. The accompanying cable box and flexible wire sleeve arranged under the track groove can protect the accompanying cable and the accompanying cable joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is described in detail below with reference to the embodiments and drawings, wherein:

[0020] Figure 1 It is an assembly schematic diagram of the disturbance power testing device of the utility model.

[0021] Figure 2 It is a top view of the disturbance power testing device of the utility model.

[0022] Figure 3 It is a cross-sectional view of the disturbance power test device of the utility model along the long direction.

[0023] Figure 4 It is a partial enlarged view of the disturbance power test device of the utility model.

[0024] Figure 5 It is a cross-sectional view of the disturbance power test device of the utility model along the width direction.

[0025] Reference numerals:

[0026] 1-track groove, 11-L-type track, 111-limiting groove, 12-track gap, 13-inverted trapezoidal friction strip, 2-absorbing clamp, 21-screw hole, 22-detection hole, 23-traveling cable, 24-detection part, 241-roller, 242-limiting fin plate, 25-traveling cable connection part, 251-traveling cable connector, 252-flexible wire sleeve, 26-support plate, 3-transmission screw, 4-drive motor, 5-traveling cable box, 61-brake pad, 611-V-shaped notch, 62-lifting seat, 621-magnetic column, 63-electromagnet, 7-cable hanging rod to be tested, 8-hanging arm, 81-wire ring, 100-cable to be tested. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0029] The principle of the present utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0030] Reference Figure 1-5The utility model proposes a disturbance power testing device, comprising a track groove 1, an absorbing clamp 2 which moves linearly along the track groove 1, a transmission screw 3 which extends along the track groove 1 and a driving motor 4 which drives the transmission screw 3 to rotate, the absorbing clamp 2 is provided with a screw hole 21, and the transmission screw 3 is transmitted and penetrated in the screw hole 21; the absorbing clamp 2 is provided with a detection hole 22 along the moving direction, and is provided with a brake mechanism, the cable 100 to be tested is suspended in the same direction above the track groove 1 and penetrates the detection hole 22; the bottom of the absorbing clamp 2 is dragged and connected with a traveling cable 23, and a traveling cable box 5 which extends in the same direction as the track groove 1 is provided below the track groove 1.

[0031] The disturbance power test device drives the absorbing clamp 2 to move through the driving motor 4 and the lead screw, and is equipped with a brake mechanism, which can accurately control the movement speed of the absorbing clamp 2 and stop the movement immediately when the power is cut off, thereby improving the radiation collection accuracy.

[0032] In this embodiment, the track groove 1 includes two left-right symmetrical L-shaped tracks 11, with a track gap 12 between the two L-shaped tracks 11, the transmission screw 3 is centrally arranged in the track gap 12, the drive motor 4 is located on the extension line of one end of the track groove 1, and the transmission screw 3 passes through the end plate of the track groove 1 and is connected to the rotating shaft of the drive motor 4. Since the drive motor 4 is far away from the absorbing clamp 2, the interference of the motor radiation on the test can be avoided as much as possible.

[0033] In this embodiment, a set of brake mechanisms is provided on each of the left and right sides of the absorbing clamp 2, and the brake mechanisms include brake pads 61, lifting seats 62 and electromagnets 63. The absorbing clamp 2 includes a detection part 24 and a traveling cable connection part 25, the detection part 24 is slidably arranged in the track groove 1, the traveling cable connection part 25 passes through the track gap 12 and sinks below the track groove 1, the traveling cable connection part 25 extends laterally from two layers of support plates 26, the electromagnet 63 is installed on the bottom support plate 26, the lifting seat 62 is elastically installed on the top support plate 26, the bottom of the lifting seat 62 is provided with a magnetic suction column 621 near the electromagnet 63, the brake pad 61 is fixed on the top of the lifting seat 62, and the top of the brake pad 61 is directly opposite to the bottom of the L-shaped track 11. The bottom of the L-shaped track 11 is provided with an inverted trapezoidal friction strip 13 extending in the same direction, the brake pad 61 is provided with a V-shaped notch 611 matched with the inverted trapezoidal friction strip 13, and each L-shaped track 11 is provided with an inverted trapezoidal friction strip 13 corresponding to the shape of the brake pad 61.

[0034] The electromagnet 63 is close to the bottom of the absorbing clamp 2 and away from the detection part 24 to avoid interference with the test. During the test, the electromagnet 63 is energized to attract the lifting seat 62 to descend, and the brake pad 61 is separated from the inverted trapezoidal friction strip 13. At this time, the absorbing clamp 2 moves forward with the rotation of the transmission screw 3. When the test is terminated, the electromagnet 63 and the drive motor 4 are powered off at the same time, and the brake pad 61 immediately bounces up and hugs the inverted trapezoidal friction strip 13. The V-shaped notch 611 and the inverted trapezoidal friction strip 13 have a large friction surface, thereby achieving the effect of stopping when the power is off.

[0035] In this embodiment, a group of rollers 241 are respectively provided on both sides of the bottom of the detection part 24, and each group of rollers 241 moves along the L-shaped track 11 located on the same side. The left and right sides of the detection part 24 extend outwards and horizontally extend the limiting fins 242 respectively, and the side plates of each L-shaped track 11 are provided with limiting grooves 111 extending in the same direction, and the limiting fins 242 are slidably arranged in the limiting grooves 111. The limiting fins 242 allow a gap to be retained between the side plates of the L-shaped track 11 and the absorbing clamp 2 to prevent the friction between the two from causing the forward speed of the absorbing clamp 2 to change, thereby affecting the test accuracy.

[0036] In this embodiment, a cable hanging rod 7 is provided at each end of the long direction of the track groove 1, and the cable 100 to be tested is suspended on the two cable hanging rods 7. Under the action of gravity, the cable 100 to be tested between the two cable hanging rods 7 will sag, and the drooping cable 100 to be tested is easy to get stuck at the opening of the detection hole 22 when the absorbing clamp 2 moves forward, which may not only affect the advancement of the absorbing clamp 2, but also damage the outer skin of the cable 100 to be tested. A suspension arm 8 for supporting the cable 100 to be tested is provided at the top of the absorbing clamp 2, and a wire ring 81 for guiding the cable 100 to be tested is provided at the front end of the suspension arm 8. By adjusting the height of the suspension arm 8, the cable 100 to be tested located in front of the detection hole 22 can smoothly enter the detection hole 22.

[0037] The accompanying cable 23 is easily damaged when dragged on the ground, and the accompanying cable box 5 provided under the track groove 1 can protect the accompanying cable 23. In this embodiment, the accompanying cable connection part 25 is provided with an accompanying cable joint 251 and a flexible wire sleeve 252. The accompanying cable 23 is easily damaged by frequent bending at the joint, so the accompanying cable 23 is connected to the accompanying cable joint 251 after passing through the flexible rubber sleeve. The flexible wire sleeve 252 can prevent the accompanying cable 23 at the joint from bending due to dragging, and the flexible wire sleeve 252 can protect the sleeved accompanying cable 23 from breaking at the sleeve joint of the two.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disturbance power test device, characterized in that: It comprises a track groove, an absorbing clamp which moves linearly along the track groove, a driving screw extending along the track groove and a driving motor which drives the driving screw to rotate, wherein the absorbing clamp is provided with a screw hole, and the driving screw is driven and penetrated in the screw hole; The absorbing clamp is provided with a detection hole along the moving direction and a brake mechanism, and the cable to be tested is suspended above the track groove in the same direction and passes through the detection hole; The bottom of the absorbing clamp is dragged and connected with a traveling cable, and a traveling cable box extending in the same direction as the track groove is provided below the track groove.

2. The disturbance power test device according to claim 1, characterized in that: The track groove includes two left-right symmetrical L-shaped tracks, a track gap is provided between the two L-shaped tracks, the transmission screw is centrally arranged in the track gap, the drive motor is located on an extension line of one end of the track groove, and the transmission screw passes through an end plate of the track groove and is connected to a rotating shaft of the drive motor.

3. The disturbance power test device according to claim 2, characterized in that: The brake mechanism includes a brake pad, a lifting seat and an electromagnet; The absorbing clamp includes a detection part and a traveling cable connection part, the detection part is slidably arranged in the track groove, the traveling cable connection part passes through the track gap and sinks below the track groove, the traveling cable connection part extends laterally out of two layers of support plates, the electromagnet is installed on the bottom support plate, the lifting seat is elastically installed on the top support plate, a magnetic suction column is provided at the bottom of the lifting seat near the electromagnet, the brake pad is fixed on the top of the lifting seat, and the top of the brake pad is directly opposite to the bottom of the L-shaped track.

4. The disturbance power test device according to claim 3, characterized in that: The bottom of the L-shaped track is provided with an inverted trapezoidal friction strip extending in the same direction, and the brake pad is provided with a V-shaped notch matched with the inverted trapezoidal friction strip.

5. The disturbance power test device according to claim 4, characterized in that: A set of brake mechanisms is respectively arranged on the left and right sides of the absorbing clamp, and each L-shaped track is provided with an inverted trapezoidal friction strip corresponding to the shape of the brake pad.

6. The disturbance power test device according to claim 5, characterized in that: The left and right sides of the detection part respectively extend outward with limit fins, and the side plates of each L-shaped track are provided with limit grooves extending in the same direction, and the limit fins are slidably arranged in the limit grooves.

7. The disturbance power test device according to claim 6, characterized in that: A set of rollers is respectively arranged on both sides of the bottom of the detection part, and each set of rollers moves along an L-shaped track located on the same side.

8. The disturbance power test device according to claim 7, characterized in that: The top of the absorbing clamp is provided with a suspension arm for supporting the cable to be tested, and the front end of the suspension arm is provided with a wire ring for guiding the cable to be tested.

9. The disturbance power test device according to claim 8, characterized in that: The traveling cable connection portion is provided with a traveling cable connector and a flexible wire sleeve, and the traveling cable is connected to the traveling cable connector after passing through the flexible wire sleeve.

10. The disturbance power test device according to claim 9, characterized in that: A cable hanging rod to be tested is respectively arranged at two ends of the track groove in the long direction.

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