Reel collector ring precision conductive friction pair test device

Abstract

A drum collector ring precision conductive friction pair test device belongs to the technical field of new energy engineering machinery vehicle cable drums, and comprises a height-adjustable slide block mechanism, a V-shaped positioning block, a precision electronic scale and a direct current resistance tester. The height-adjustable sliding block mechanism comprises a base and a vertical guide sliding block pair arranged on the base. And a circuit board brush wire mounting plate which transversely extends out is fixed on a sliding block of the guide sliding block pair. And the V-shaped positioning block for placing the conducting ring is placed on the precision electronic scale. And two probes of the direct current resistance tester are respectively used for connecting the detection end of the circuit board and the conducting ring. The vertical position of the sliding block is controlled to change the contact pressure between the circuit board brush wires on the two sides and the conducting ring below the circuit board brush wires, the pressure values are displayed through the precision electronic scale, and meanwhile the direct-current resistance tester is used for detecting contact direct-current resistance values corresponding to different pressure values between the circuit board brush wires and the conducting ring. And finally selecting the optimal contact pressure to be matched with the direct-current resistance value.

Description

Technical Field

[0001] This utility model belongs to the field of cable reel technology for new energy engineering machinery vehicles, and specifically relates to a test device for a precision conductive friction pair of reel collector ring. Background Technology

[0002] With the increasing intelligence of new energy construction machinery vehicles, the requirements for the high reliability of related control signal transmission devices are becoming increasingly stringent. New energy construction machinery vehicles use an external power supply for the drum, and the drum slip ring is a crucial core component, responsible not only for power transmission but also for transmitting certain control signals. As the core component for signal transmission within the slip ring, the performance of the precision conductive friction pair directly determines the reliability and stability of signal transmission. If signal transmission is distorted or packets are lost, normal safety alarms may not be promptly and correctly fed back and prevented, ultimately leading to potential safety risks. Previously, the matching of the precision conductive friction pair brush filaments and the conductive ring largely relied on experience, sometimes resulting in excessive contact pressure, increased wear, and excessive abrasive material that could cause creepage, affecting signal transmission. Utility Model Content

[0003] The purpose of this invention is to provide a test device for a precision conductive friction pair of a roll collector ring. This device can be adjusted to detect the contact resistance and contact pressure between the circuit board brush filaments and the conductive ring.

[0004] The technical solution adopted is:

[0005] A test device for a precision conductive friction pair of a reel collector ring includes a height-adjustable slider mechanism, a V-shaped positioning block, a precision electronic scale, and a DC resistance tester.

[0006] The height-adjustable slider mechanism includes a base and a vertical guide slider pair disposed on the base.

[0007] A horizontally extending circuit board brush mounting plate is fixed on the slider of the guide slider pair.

[0008] A V-shaped locating block for placing the conductive ring is placed on a precision electronic scale.

[0009] The two probes of the DC resistance tester are used to connect the detection terminal of the circuit board and the conductive ring, respectively.

[0010] Its advantages are:

[0011] In summary, the research and testing of precision conductive friction pairs are of paramount importance, necessitating this device to optimally match the positions of the circuit board brush filaments and conductive rings. The precision conductive friction pair utilizes circuit board brush filaments (silver-copper alloy wire bundles) and silver-plated conductive rings (with an internal copper ring). Since the matching of the circuit board brush filaments and conductive rings requires consideration of contact pressure, contact resistance, and wear, this testing device continuously adjusts the contact resistance and contact pressure of the circuit board wire bundles and conductive rings to achieve the optimal match that stabilizes the signal and reduces wear. This testing device allows for the testing and matching of conductive rings with different diameters and circuit board brush filaments with different angles, studying the optimal contact resistance under certain pressure values, shortening the research cycle of precision conductive friction pairs, and providing important reference data for their optimal matching and comparative testing of different plating layers and materials. Ultimately, this meets the requirements of high accuracy and reliability in intelligent signal transmission for new energy engineering machinery vehicles. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is the front view of the present invention.

[0015] Figure 4 This is a top view of the present invention.

[0016] 1. Base; 2. Guide post; 3. Slider; 4. Spring; 5. Knob rod; 6. Circuit board brush mounting plate; 7. Circuit board brush; 8. Conductive ring; 9. V-shaped positioning block; 10. Precision electronic scale; 11. DC resistance tester; 12. Circuit board; 13. Top plate; 14. Slider positioning rod; 15. Positioning hole. Detailed Implementation

[0017] A test device for a precision conductive friction pair of a reel collector ring includes a height-adjustable slider mechanism, a V-shaped positioning block 9, a precision electronic scale 10, and a DC resistance tester 11.

[0018] The height-adjustable slider mechanism includes a base 1 and a vertical guide slider pair disposed on the base 1.

[0019] A horizontally extending circuit board brush mounting plate 6 is fixed on the slider 3 of the guide slider pair to drive the circuit board 12 to move up and down.

[0020] The circuit board brush mounting plate 6 has positioning holes 15. Positioning nuts are set on both sides of the vertical screw passing through the circuit board 12, and the positioning nut located at the top is locked in the positioning hole 15.

[0021] The circuit board 12 has circuit board brushes 7 and other circuit components on its left and right sides, respectively. This is the prior art.

[0022] V-shaped positioning block 9 is placed on precision electronic scale 10, and conductive rings 8 of different diameters can be placed in the V-groove of V-shaped positioning block 9.

[0023] One probe of the DC resistance tester 11 is connected to the detection terminal of the circuit board 12, and the other probe of the DC resistance tester 11 is connected to the conductive ring 8.

[0024] Specifically:

[0025] The vertical guide slider assembly includes multiple guide posts 2, sliders 3, top plate 13, and knob rods 5.

[0026] The bottoms of multiple guide posts 2 are fixed to the base 1.

[0027] The top plate 13 is fixed at the top of multiple guide columns 2.

[0028] A vertically positioned knob rod 5 is threaded onto the top plate 13.

[0029] The bottom of knob 5 is located above slider 3.

[0030] The slider 3 has multiple slider holes and is fitted onto the guide post 2.

[0031] A slider positioning rod 14 extending downwards is fixed at the bottom of slider 3, and a spring 4 is sleeved on slider positioning rod 14.

[0032] The upper end of spring 4 abuts against the bottom of slider 3, and the lower end of spring 4 is located in the positioning groove of base 1.

[0033] In this embodiment, there are four guide posts 2 and slider holes, which are located at the four corners.

[0034] By turning the knob on the top of the knob lever 5, the slider 3 is moved up and down, which drives the circuit board brush mounting plate 6 and the circuit board 12. The circuit board brushes 7 on both sides of the circuit board 12 change the contact pressure with the conductive ring 8 below. The pressure value is displayed by the precision electronic scale 10. At the same time, the DC resistance tester 11 is used to detect the contact DC resistance value corresponding to different pressure values ​​between the circuit board brushes 7 and the conductive ring 8. Finally, the optimal contact pressure and DC resistance value are selected to match.

Claims

1. A test device for a precision conductive friction pair of a reel slip ring, comprising a height-adjustable slider mechanism, a V-shaped positioning block (9), a precision electronic scale (10), and a DC resistance tester (11); characterized in that: The height-adjustable slider mechanism includes a base (1) and a vertical guide slider pair disposed on the base (1); A horizontally extending circuit board brush mounting plate (6) is fixed on the slider (3) of the guide slider pair. The V-shaped positioning block (9) for placing the conductive ring (8) is placed on the precision electronic scale (10); The two probes of the DC resistance tester (11) are used to connect the detection end of the circuit board (12) and the conductive ring (8), respectively.

2. The test device for a precision conductive friction pair of a drum collector ring according to claim 1, characterized in that: The circuit board brush mounting plate (6) has positioning holes (15).

3. The test device for a precision conductive friction pair of a drum collector ring according to claim 1, characterized in that: The vertical guide slider assembly includes multiple guide posts (2), sliders (3), top plate (13), and knob rods (5); The bottoms of multiple guide posts (2) are fixed to the base (1); Top plate (13) is fixed at the top of multiple guide columns (2); A vertically arranged knob rod (5) is threaded onto the top plate (13); The bottom of the knob lever (5) is located above the slider (3); The slider (3) has multiple slider holes and is fitted onto the guide post (2); The bottom of the slider (3) is fixed with a downwardly extending slider positioning rod (14), and a spring (4) is sleeved on the slider positioning rod (14). The upper end of the spring (4) abuts against the bottom of the slider (3), and the lower end of the spring (4) is located in the positioning groove of the base (1).

Images