CN-224231879-U - Accurate conductive friction pair test device of reel collecting ring

Abstract

A testing device for a precise conductive friction pair of a winding drum collecting ring belongs to the technical field of cable winding drums of new energy engineering machinery vehicles and comprises a height-adjustable sliding block mechanism, a V-shaped positioning block, a precise 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 transversely extending circuit board brush wire mounting plate is fixed on the sliding block of the guide sliding block pair. The V-shaped positioning block for placing the conducting ring is placed on the precise electronic scale. The two probes of the direct current resistance tester are respectively used for connecting the detection end of the circuit board and the conducting ring. And controlling the circuit board brush wires on the upper and lower positions of the sliding block to change the contact pressure with the conductive ring below, displaying the pressure value through a precise electronic scale, detecting the corresponding contact direct current resistance value between the circuit board brush wires and the conductive ring at different pressure values by using a direct current resistance tester, and finally selecting the optimal contact pressure to be matched with the direct current resistance value.

Inventors

• ZHANG LINGWEI
• ZHU ZHIFA
• WU ZAIMING

Assignees

• 大连宇生科技有限公司

Dates

Publication Date

20260512

Application Date

20250520

Claims (3)

1. 1. The utility model provides a accurate conductive friction pair test device of reel collecting ring, includes height-adjustable slider mechanism, V type locating piece (9), accurate electronic scale (10) and direct current resistance tester (11), its characterized in that: the height-adjustable sliding block mechanism comprises a base (1) and a vertical guide sliding block pair arranged on the base (1); a transversely extending circuit board brush wire mounting plate (6) is fixed on a sliding block (3) of the guide sliding block pair; The V-shaped positioning block (9) for placing the conducting ring (8) is placed on the precise electronic scale (10); The two probes of the direct current resistance tester (11) are respectively used for connecting the detection end of the circuit board (12) and the conducting ring (8).
2. 2. The device for testing the precision conductive friction pair of the winding drum collector ring according to claim 1, wherein the device comprises the following components: the circuit board brush wire mounting plate (6) is provided with a positioning hole (15).
3. 3. The device for testing the precision conductive friction pair of the winding drum collector ring according to claim 1, wherein the device comprises the following components: The vertical guide sliding block pair comprises a plurality of guide posts (2), a sliding block (3), a top plate (13) and a knob rod (5); the bottoms of the guide posts (2) are fixed on the base (1); a top fixing plate (13) of the plurality of guide posts (2); A knob rod (5) vertically arranged is connected on the top plate (13) in a threaded manner; the bottom of the knob rod (5) is positioned above the sliding block (3); The sliding block (3) is provided with a plurality of sliding block holes and sleeved on the guide post (2); A slide block positioning rod (14) which extends downwards is fixed at the bottom of the slide block (3), and a spring (4) is sleeved on the slide block positioning rod (14); The upper end of the spring (4) is propped against the bottom of the sliding block (3), and the lower end of the spring (4) is positioned in the positioning groove of the base (1).

Description

Accurate conductive friction pair test device of reel collecting ring Technical Field The utility model belongs to the technical field of cable reels of new energy engineering machinery vehicles, and particularly relates to a precision conductive friction pair test device for a reel collecting ring. Background Along with the improvement of the intelligent degree of the new energy engineering machinery vehicle, the requirements on the high reliability of the related participating control signal transmission device are higher and higher. The new energy engineering machinery vehicle can be powered by adopting a winding drum external power supply, and a winding drum collecting ring is an important core component on the winding drum and is also responsible for transmission of certain control signals besides power supply transmission. The precision conductive friction pair is used as a core component for transmitting signals of the collecting ring, the reliability and stability of signal transmission are directly determined by the performance of the precision conductive friction pair, if signal transmission is distorted or packet loss occurs, normal safety alarms cannot be timely and correctly fed back and prevented, and finally potential safety hazards are caused. The matching of the brush wire of the conventional precise conductive friction pair and the conductive ring is largely experienced, so that the contact pressure value is sometimes overlarge to cause abrasion increase, and excessive abrasive materials are easy to cause creepage to influence signal transmission. Disclosure of utility model The utility model aims to provide a precision conductive friction pair test device for a winding drum collecting ring, which can detect the contact resistance and the contact pressure between a circuit board brush wire and a conductive ring through adjustment. The technical scheme adopted is as follows: a testing device for a precise conductive friction pair of a winding drum collecting ring comprises a height-adjustable sliding block mechanism, a V-shaped positioning block, a precise 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 transversely extending circuit board brush wire mounting plate is fixed on the sliding block of the guide sliding block pair. The V-shaped positioning block for placing the conducting ring is placed on the precise electronic scale. The 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 advantages are that: In view of the above, the research and experimental test of the precise conductive friction pair are particularly important, and the device is required to reasonably match the reasonable positions of the circuit board brush wires and the conductive rings. The circuit board brush wire (silver-copper alloy wire bundle) and the silver-plated conductive ring (copper ring can be arranged inside) are adopted in the precise conductive friction pair, and as the contact pressure, the contact resistance, the abrasion and the like are required to be considered in matching of the circuit board brush wire and the conductive ring, the contact resistance and the contact pressure of the circuit board wire bundle and the conductive ring are continuously adjusted through the test device, so that the best matching of signal stability and abrasion reduction is achieved, the test and matching of the conductive rings with different diameters and the circuit board brush wire with different angles can be carried out through the test device, the best contact resistance is researched under a certain pressure value, the research period of the precise conductive friction pair is shortened, and meanwhile, important reference data are provided for reasonable matching and comparison test of different plating layers and materials of the precise conductive friction pair, and finally the requirements of intelligent signal transmission precision and high reliability of new energy engineering machinery vehicles are met. Drawings Fig. 1 is a perspective view of the present utility model. Fig. 2 is a side view of the present utility model. Fig. 3 is a front view of the present utility model. Fig. 4 is a top view of the present utility model. Base 1, guide post 2, slider 3, spring 4, knob pole 5, circuit board brush silk mounting panel 6, circuit board brush silk 7, conducting ring 8, V type locating piece 9, accurate electronic scale 10, direct current resistance tester 11, circuit board 12, roof 13, slider locating lever 14, locating hole 15. Detailed Description A testing device for a precise conductive friction pair of a winding drum collecting ring comprises a height-adjustable sliding block mechanism, a V-shaped positioning block 9, a precise electronic scale 10 and a direct curren