CN211292022U - Sliding electric contact test device with rigid and flexible combination - Google Patents
Sliding electric contact test device with rigid and flexible combination Download PDFInfo
- Publication number
- CN211292022U CN211292022U CN202020265502.8U CN202020265502U CN211292022U CN 211292022 U CN211292022 U CN 211292022U CN 202020265502 U CN202020265502 U CN 202020265502U CN 211292022 U CN211292022 U CN 211292022U
- Authority
- CN
- China
- Prior art keywords
- lifting
- rigid
- contact
- electrical contact
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a sliding electrical contact test device of just gentle combination belongs to track test field. The device comprises a rack, a rotating mechanism arranged on the rack, a sliding block mechanism arranged on the rotating mechanism, a contact line mechanism arranged on the rack and positioned above the sliding block mechanism, a data acquisition mechanism, a control mechanism arranged on the rack and a power supply connected with the control mechanism. The utility model discloses the structure is rigorous, and the process of the test is stable, and the experimental result credibility is high, and performance is good, and application scope is wide, through the change to the contact line type, can realize the performance research of general railway flexible bow net electrical contact, can realize the performance research of railway tunnel highway section and subway rigidity bow net electrical contact again.
Description
Technical Field
The invention relates to the field of rail testing, in particular to a rigid-flexible combined sliding electric contact testing device.
Background
With the increasing demand of human socioeconomic demand, rail transit plays an increasingly important role in life. The traction power supply is a specific power supply mode of rail transit, and the pantograph system is the only current taking path in train running. Due to the high speed, large current-carrying capacity in an extremely small area, outdoor long-term extreme climates such as rain, snow, wind and sand and the like, and offline electric arcs caused by bow net vibration, the bow net electric contact surface is in an extremely bad state. The abnormal abrasion caused by high speed, heavy load and extreme climate or the electrical ablation caused by off-line electric arc can cause irreversible damage to the contact line and the pantograph slide plate, greatly aggravate the maintenance workload and the operation cost and even cause personnel and property loss in serious conditions. Therefore, the method has great practical engineering significance for researching the tribological characteristics and the change rule of the electrical characteristics of the electrical contact under the working conditions of different currents, speeds, contact pressures and the like.
Meanwhile, with the gradual increase of the urban expansion speed, subways rapidly occupy the urban public transport market with the advantages of strong transportation capacity, punctuality, high efficiency and the like. In order to match the construction condition that the clear space of the underground tunnel is small, the subway selects a rigid contact net which has a simple structure and has no tension and no worry of disconnection of a contact line. But in long-term operation it has been found that there is more severe abnormal wear of rigid contacts than flexible contacts in conventional railways. However, most of the conventional current-carrying frictional wear test devices and electrical contact test devices are in single flexible contact, so that the test requirements on railway tunnel sections and urban rail traffic cannot be met, and a rigid-flexible combined electrical contact test device is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rigid-flexible combined sliding electric contact test device, which has the following specific technical scheme:
a rigid-flexible combined sliding electrical contact test device comprises a rack, a rotating mechanism arranged on the rack, a sliding block mechanism arranged on the rotating mechanism, a contact line mechanism arranged on the rack and positioned above the sliding block mechanism, a data acquisition mechanism, a control mechanism arranged on the rack and a power supply connected with the control mechanism;
the contact wire mechanism comprises a fixed support arranged on the rack, a contact wire lifting group arranged at the bottom end of the fixed support and a contact wire arranged at the bottom end of the contact wire lifting group, and the sliding block mechanism comprises a rotating support arranged at the output end of the rotating mechanism, a sliding block lifting group arranged on the rotating support, a clamping piece arranged on the sliding block lifting group and a test sliding block arranged on the clamping piece.
Preferably, the contact line lifting group comprises a plurality of groups of lifting wire clamps which are arranged at the bottom end of the fixed support at equal intervals, a hand wheel arranged at the side of the fixed support, a transmission group which is arranged in the fixed support and is positioned between the hand wheel and the lifting wire clamps, and clamping bolts arranged on the lifting wire clamps, the contact line is arranged in the lifting wire clamps, and the top ends of the lifting wire clamps and the top ends of the fixed support are in a tightly abutting state in an initial state.
Preferably, the transmission set comprises a lifting gear arranged in the fixed support and meshed with the lifting wire clamp, a driven wheel coaxially arranged with the lifting gear, a driving wheel arranged in the fixed support and coaxially arranged with the hand wheel, and a synchronous belt arranged between the driven wheel and the driving wheel.
Preferably, the slide block lifting group comprises a servo motor arranged on the rotary bracket, a servo electric cylinder arranged on the rotary bracket and connected with the servo motor, and a speed reducer arranged between the output end of the servo motor and the servo electric cylinder.
Preferably, the data acquisition mechanism comprises a normal force sensor arranged between the slide block lifting group and the test slide block, a tangential force sensor arranged beside the clamping piece, a voltage sensor arranged between the contact line and the clamping piece, a current sensor arranged between the clamping piece and the power supply, and an infrared imager and a decibel tester arranged on the stand;
the data acquisition mechanism also comprises a signal amplifier respectively connected with the voltage sensor, the current sensor, the normal force sensor and the tangential force sensor, and a data acquisition card connected with the output end of the signal amplifier, wherein the output end of the data acquisition card, the output end of the infrared imager and the output end of the decibel tester are all connected with the control mechanism.
Preferably, an insulating film is arranged between the tangential force sensor and the clamping piece, and an insulating plate is arranged between the normal force sensor and the clamping piece.
Preferably, the frame is provided with a grounding device, the power supply anode and the fixed support, the clamping piece and the grounding device and the power supply cathode are electrically connected through conducting wires, and a current-limiting resistor is further arranged between the power supply anode and the fixed support.
Preferably, the rotating mechanism comprises a variable frequency motor arranged on the rack and connected with the control mechanism, and a worm transmission structure arranged between the output end of the variable frequency motor and the rotating bracket.
Preferably, the control mechanism comprises a control console, a display screen arranged on the control console, a computer terminal arranged in the control console, a speed control module connected with the variable frequency motor, a power supply control module connected with a power supply, a pressure application module connected with the servo motor and a data display module electrically connected with the display screen, wherein the speed control module, the power supply control module, the pressure application module and the data display module are all connected with the computer terminal.
The invention has the following beneficial effects:
the contact wire lifting group is used for adjusting the distance between the contact wire and the fixed support, and the slider lifting group is used for adjusting the distance between the contact wire and the test slider. When the distance D of the contact line extending out of the fixed support is larger than 0, the contact line can be lifted towards the fixed support when the test device is operated, and the contact line and the test slider are in a flexible working state; when the distance D of the contact line extending out of the fixed support is 0, the contact line cannot be lifted towards the fixed support when the test device is operated, and the contact line and the test slider are in a rigid working state; thereby effecting a change in the contact line and test slider contact pattern.
Meanwhile, through the mutual cooperation of the data acquisition mechanism, the lifting device and the power supply mechanism, a normal direction force signal of dynamic contact pressure, a tangential direction force signal of the dynamic contact pressure, a voltage signal, a current signal, a temperature signal of a contact surface of a test slider and a noise decibel signal of the contact surface in the test process are acquired and recorded in real time, so that reliable support is provided for the research of the sliding electric contact performance. And the inner space of the fixed support is sufficient, the condition simulation modules under different environment working conditions are easily added according to different research directions, and the transformation is efficient and convenient. The invention has the advantages of rigorous structure, stable test process, high reliability of experimental results, good use performance and wide application range, and can realize the performance research of the electric contact of the flexible bow net of the common railway and the rigid bow net of the railway tunnel section and the subway by changing the type of the contact line.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a contact wire mechanism according to the present invention;
FIG. 3 is a schematic diagram of a contact line lift assembly according to the present invention;
FIG. 4 is a cross-sectional view of a contact wire lift assembly of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at A;
FIG. 6 is a schematic diagram of the movement trace of the test slider according to the present invention;
FIG. 7 is a schematic circuit diagram of the data acquisition mechanism of the present invention;
fig. 8 is a block diagram showing the components of the control mechanism of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "communicating," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 8, the rigid-flexible sliding electrical contact testing apparatus in the present invention includes a frame 1, a rotating mechanism 2 disposed on the frame 1, a slider mechanism 3 disposed on the rotating mechanism 2, a contact line mechanism 4 disposed on the frame 1 and above the slider mechanism 3, a data acquisition mechanism 5, a control mechanism 6 disposed on the frame 1, and a power supply 7 connected to the control mechanism 6. The frame 1 is made of steel to ensure a firm structure, and the surface of the frame 1 is coated with phosphate high-temperature-resistant coating, so that the heat resistance, corrosion resistance, weather resistance and other performances of the frame 1 are improved. The bottom of the rack 1 is provided with 10 fixable universal wheels, so that a tester can adjust the position of the rack 1 as required.
Referring to fig. 1, the rotating mechanism 2 includes a variable frequency motor 21 disposed on the base of the frame 1 and electrically connected to the control mechanism 6, and a worm transmission structure 22 disposed between the output end of the variable frequency motor 21 and the slider mechanism 3, and a sliding bearing is further sleeved outside the junction between the output end of the variable frequency motor 21 and the worm transmission structure 22, and the sliding bearing is used for supporting the variable frequency motor 21 and the worm transmission structure 22 and reducing the friction coefficient during the transmission process. The working principle of the rotating mechanism 2 is that the variable frequency motor 21 drives the sliding block mechanism 3 to rotate through the bearing and worm transmission structure 22. The sliding bearing and worm transmission structure 22 arranged at the output end of the variable frequency motor 21 is used for converting the rotation direction of the variable frequency motor 21 and obtaining a rotating force tangent to the rotation direction of the variable frequency motor 21 so as to drive the sliding block mechanism 3 to rotate. And the variable frequency motor 21 is electrically connected with the control mechanism 6, so that the relative speed of the control mechanism 6 to the sliding block mechanism 3 and the rotating bracket 31 can be continuously and accurately adjusted within 0-400 km/h.
Referring to fig. 1 and 5, the slider mechanism 3 includes a rotating bracket 31 disposed at the output end of the worm drive structure 22, a slider lifting group 32 disposed on the rotating bracket 31, a clamping member 33 disposed on the slider lifting group 32, and a test slider 34 disposed on the clamping member 33, wherein the clamping member 33 is used for fixing the test slider 34, and is made of pure copper, and has good conductivity. The rotating bracket 31 is arranged at the output end of the worm drive structure 22 and has a length of 0.5 m. The slide block lifting group 32 includes a servo motor 321 disposed at the top end of the rotary bracket 31, a servo electric cylinder 322 disposed at the output end of the servo motor 321, and a speed reducer 323 disposed between the servo electric cylinder 322 and the output end of the servo motor 321. The servo motor 321 is electrically connected with the control mechanism 6, and a tester can control the lifting distance and the lifting speed of the servo electric cylinder 322 through a matched software interface. The reducer 323 is used to reduce the output speed of the servo motor 321, and further, the precise control of the lifting speed and distance of the servo electric cylinder 322 is realized. The servo electric cylinder 322 is a dynamometer-Thanks IMB type servo electric cylinder 322, the thrust range is 50N to 5000N, the control precision is 1%, the stroke is 50mm, and the control precision is 0.01 mm.
Referring to fig. 1 to 3, the contact line structure 4 includes a fixed support 41 disposed on the left side of the frame 1, a contact line lifting group 42 disposed at the bottom end of the fixed support 41, and a contact line 43 disposed at the bottom end of the contact line lifting group 42. The fixed support 41 and the contact line 43 are regular octagons, wherein the fixed support 41 is formed by welding eight equal-length steel supports in a seamless mode, the contact line 43 is formed by welding eight equal-length pure copper contact lines 43 in a seamless mode, and the fixed support 41 is fixed on the left plane of the rack 1 through an insulating fixing piece. The contact line elevating group 42 is used to control the elevating distance of the contact line 43. The contact line lifting group 42 comprises a plurality of groups of lifting line clamps 421 which are arranged at the bottom end of the fixed support 41 and are arranged at equal intervals, a hand wheel 422 arranged at the side of the fixed support 41, a transmission group 423 arranged in the fixed support 41 and positioned between the hand wheel 422 and the lifting line clamps 421, and clamping bolts 424 arranged on the lifting line clamps 421, the contact line 43 is arranged in the lifting line clamps 421, and the top ends of the lifting line clamps 421 are in a tightly abutting state with the top ends of the fixed support 41 in an initial state. Wherein, each side of the fixed bracket 41 is equidistantly provided with three lifting wire clamps 421 and a hand wheel 422.
Referring to fig. 2 to 4, the transmission set 423 includes a lifting gear 4231 disposed in the fixed bracket 41 and engaged with the lifting wire clamp 421, a driven wheel 4232 disposed coaxially with the lifting gear 4231, a driving wheel 4233 disposed in the fixed bracket 41 and disposed coaxially with the hand wheel 422, and a timing belt 4234 disposed between the driven wheel 4232 and the driving wheel 4233. The tester can realize that all the lifting wire clamps 421 on each side of the fixed support 41 can lift simultaneously through the rotation of the hand wheel 422. The working principle of the structure of the contact wire 43 is that the contact wire 43 is fixed on the liftable wire clamp 421 through grooves on two sides, and the stability of the operation process is ensured through the clamping bolt 424. The tester can realize that all the lifting wire clamps 421 on each side of the fixed support 41 can lift simultaneously through the rotation of the hand wheel 422, and the lifting range is 0-10 cm. When the distance D of the liftable wire clamp 421 extending out of the fixed support 41 is larger than 0, the contact wire 43 can be lifted when the sliding electric contact test device operates, and is in a flexible working state at the moment; when the liftable wire clamp 421 extends out of the fixing support 41 by a distance D equal to 0, the contact wire 43 cannot be lifted when the sliding electrical contact test device operates, and is in a rigid working state at this time. Before starting the sliding electrical contact test device, the contact lines 43 on the eight sides of the fixed bracket 41 must be ensured to be at the same height.
Referring to fig. 1 and 7, the data acquisition mechanism 5 includes a normal force sensor 51 disposed between the output end of the servo cylinder 322 and the test slider 34 and used for measuring the normal force of the test slider 34, a tangential force sensor 52 disposed beside the clamping member 33 and used for testing the tangential force of the test slider 34, a voltage sensor 53 disposed between the contact wire 43 and the clamping member 33 and used for measuring voltage, a current sensor 54 disposed between the clamping member 33 and the power supply 7 and used for measuring current, and an infrared imager 55 and a decibel tester 56 disposed on the frame 1, an insulating film 521 for achieving electrical isolation is disposed between the tangential force sensor 52 and the clamping member 33, and an insulating plate 511 for achieving electrical isolation is disposed between the normal force sensor 51 and the clamping member 33. The data acquisition mechanism 5 further comprises a signal amplifier 57 respectively connected with the voltage sensor 53, the current sensor 54, the normal force sensor 51 and the tangential force sensor 52, and a data acquisition card 58 connected with the output end of the signal amplifier 57, wherein the output end of the data acquisition card 58, the output end of the infrared imager 55 and the output end of the decibel tester 56 are all connected with the control mechanism 6.
Referring to fig. 1 and 7, the input end of the voltage sensor 53 is connected to the contact line 43 and the clamping member 33, the input end of the current sensor 54 is connected to the clamping member 33 and the negative electrode of the power supply 7, the output ends of the voltage sensor 53, the current sensor 54, the normal force sensor 51 and the tangential force sensor 52 are electrically connected to the input end of the signal amplifier 57, the output end of the signal amplifier 57 is electrically connected to the input end of the data acquisition card 58, and the output ends of the data acquisition card 58, the infrared imager 55 and the decibel tester 56 are connected to the control mechanism 6. The infrared imager 55 is used for collecting the temperature parameters of the contact surface of the test slider 34 and the contact line 43, and the decibel tester 56 is used for collecting the noise generated by friction in the operation process. The ETCR030AD type AC/DC clamp-shaped current sensor 54 is selected as the current sensor 54, and the AC/DC state ranges are 0-60A; the alternating voltage sensor 53 is an MIK-DJU type voltage sensor 53, the direct voltage sensor 53 is an MIK-DZU type voltage sensor 53, the measuring range is 0-100V, the excitation voltage is 24V, and the accuracy is 0.5 grade; the normal force sensor 51 adopts a QLMH-P flat diaphragm box type normal tension-compression force sensor; the tangential force sensor 52 adopts an S-shaped tangential tension-compression force sensor with the model number of QLTSC, the range of measurement ranges is 30-50000N, and the excitation voltage is 24V; the infrared imager 55 is a differential input NECR500EX type infrared imager 55, the resolution is more than 640 multiplied by 480 pixels, and the wavelength range is 3.5-18 mu m; the decibel tester 56 is an HS5670A decibel tester 56, and the sound level measurement range is 25-135 dB; the output voltage of the signal amplifier 57 is 0-40V, and the output current is 0-500 mA; the data acquisition card 58 is a four-channel acquisition card of TiePie, and the maximum sampling frequency is 50 MHz.
Referring to fig. 1, a power supply 7 is arranged on the frame 1 and at the right end of the worm drive structure 22, the power supply 7 is used for providing facility operation power, a grounding device 8 is further arranged on the frame 1, the positive pole of the power supply 7 and the fixed support 41, the clamping piece 33 and the grounding device 8, and the grounding device 8 and the negative pole of the power supply 7 are electrically connected through conducting wires 81, and the conducting wires 81 are used for current transmission and are made of copper braided wires. The power supply 7 consists of an alternating current power supply and a direct current power supply, a conductive wire 81 led out from the positive electrode of the power supply 7 is connected with the fixed bracket 41, and a conductive wire 81 led out from the grounding device 8 is connected with the clamping piece 33; the grounding device 8 is a cavity vessel made of high-temperature-resistant insulating material, mercury is filled in the cavity vessel, the conducting wires 81 are grounded through mercury, and the outer sides of the three conducting wires 81 are wrapped by insulating thermoplastic tubes. The power supply 7 is electrically connected with the control mechanism 6, the control mechanism 6 adjusts the attribute and the magnitude of alternating current and direct current output by the power supply 7, the current of the alternating current module is 0-150A, the voltage is continuously adjustable at 0-1500V, the current of the direct current module is 0-500A, and the voltage is continuously adjustable at 0-300V; a current limiting resistor 71 is further arranged inside the power supply 7 and between the positive electrode of the power supply 7 and the fixed support 41, and the resistance value of the current limiting resistor 71 is determined by the selected test voltage and current values and is used for preventing the power supply 7 from being damaged due to overlarge current in a passage.
Referring to fig. 1 and 8, the console 61 includes a console 61, a display screen 62 disposed on the console 61, a computer terminal 63 disposed in the console 61, a speed control module 64 electrically connected to the inverter motor 21 and used for controlling the rotation speed of the test slider 34, a power control module 65 electrically connected to the power supply 7 and used for controlling the operating voltage and current parameters, a pressure application module 66 electrically connected to the servo motor 321 and used for controlling the contact pressure between the test slider 34 and the contact line 43, and a data display module 67 electrically connected to the display screen 62 of the console 61, wherein the speed control module 64, the power control module 65, the pressure application module 66, and the data display module 67 are electrically connected to the computer terminal 63. The real-time data of normal force, tangential force, voltage, current, contact surface temperature and operation decibel measured by the data acquisition mechanism 5, the real-time relative speed of the test slider 34 fed back by the speed control module 64, the real-time friction coefficient and the contact resistance obtained by calculation through corresponding programs can be displayed on the display screen 62 of the control console 61, the test operation is simplified, the real-time monitoring of the electric contact state of the test device is realized, and the analysis of the electric contact friction characteristic and the electric characteristic rule of the bow net is facilitated.
The calculation formula of bow net contact resistance R and friction coefficient mu is as follows:
where U is the voltage data across the contact surface collected by the voltage sensor 53, I is the current data flowing through the contact surface collected by the current sensor 54, and FrTangential force data, F, received by the contact pairs collected for the tangential force sensor 52nNormal force data collected for the contact pairs experienced by the normal force sensor 51.
Referring to fig. 6, the contact line 43 is a regular octagon, so that in the rotation process of the test slider 34, the actual friction range between the contact line 43 and the slider 34 is not fixed, and the contact line and the slider are in a left-right swinging trend, thereby simulating the zigzag distribution of an actual contact net.
The invention ensures the stability of the operation process of the contact wire 43 by fixing the contact wire 43 on the fixed support 41, realizes the adjustment of the distance between the contact wire 43 and the fixed support 41 by the contact wire lifting group 42, and realizes the adjustment of the distance between the contact wire 43 and the test slider 34 by the slider lifting group 32. When the contact line 43 extends out of the fixed support 41 by a distance D larger than 0, the contact line 43 can be lifted towards the fixed support 41 when the test device is in operation, and the contact line 43 and the test slider 34 are in a flexible working state; when the contact line 43 extends out of the fixed support 41 by a distance D equal to 0, the contact line 43 cannot be lifted towards the fixed support 41 when the present invention is in operation, and at this time, the contact line 43 and the test slider 34 are in a rigid working state; this results in a change in the contact pattern of the contact line 43 and the test slide 34. Meanwhile, through the mutual matching of the data acquisition mechanism 5, the lifting device and the power supply 7 mechanism, a normal direction force signal of dynamic contact pressure, a tangential direction force signal of the dynamic contact pressure, a voltage signal, a current signal, a temperature signal of a contact surface of the test slider 34 and a noise decibel signal of the contact surface in the test process are acquired and recorded in real time, and reliable support is provided for the research of the sliding electric contact performance. And the inner space of the fixed support 41 is sufficient, and condition simulation modules under different environmental conditions can be easily added according to different research directions, so that the transformation is efficient and convenient. The invention has the advantages of rigorous structure, stable test process, high reliability of experimental results, good use performance and wide application range, and can realize the performance research of the electric contact of the flexible pantograph-catenary of the general railway and the rigid pantograph-catenary of the railway tunnel section and the subway by changing the type of the contact line 43.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A rigid-flexible combined sliding electrical contact test device is characterized by comprising a rack (1), a rotating mechanism (2) arranged on the rack (1), a sliding block mechanism (3) arranged on the rotating mechanism (2), a contact line mechanism (4) arranged on the rack (1) and positioned above the sliding block mechanism (3), a data acquisition mechanism (5), a control mechanism (6) arranged on the rack (1) and a power supply (7) connected with the control mechanism (6);
the contact line mechanism (4) comprises a fixed support (41) arranged on the rack (1), a contact line lifting group (42) arranged at the bottom end of the fixed support (41) and a contact line (43) arranged at the bottom end of the contact line lifting group (42), and the sliding block mechanism (3) comprises a rotating support (31) arranged at the output end of the rotating mechanism (2), a sliding block lifting group (32) arranged on the rotating support (31), a clamping piece (33) arranged on the sliding block lifting group (32) and a test sliding block (34) arranged on the clamping piece (33).
2. The rigid-flexible combined sliding electrical contact test device according to claim 1, wherein the contact line lifting group (42) comprises a plurality of groups of lifting line clamps (421) which are arranged at the bottom end of the fixing support (41) and are equidistantly arranged, a hand wheel (422) arranged at the side of the fixing support (41), a transmission group (423) which is arranged in the fixing support (41) and is positioned between the hand wheel (422) and the lifting line clamps (421), and clamping bolts (424) arranged on the lifting line clamps (421), the contact line (43) is arranged in the lifting line clamps (421), and the top ends of the lifting line clamps (421) are in a tight abutting state with the top ends of the fixing support (41) in an initial state.
3. The rigid-flexible sliding electrical contact test device according to claim 2, wherein the transmission set (423) comprises a lifting gear (4231) which is arranged in the fixed support (41) and is meshed with the lifting wire clamp (421), a driven wheel (4232) which is coaxially arranged with the lifting gear (4231), a driving wheel (4233) which is arranged in the fixed support (41) and is coaxially arranged with the hand wheel (422), and a synchronous belt (4234) which is arranged between the driven wheel (4232) and the driving wheel (4233).
4. The rigid-flexible sliding electrical contact testing device according to claim 1, wherein the slider lifting group (32) comprises a servo motor (321) arranged on the rotating bracket (31), a servo electric cylinder (322) arranged on the rotating bracket (31) and connected with the servo motor (321), and a speed reducer (323) arranged between the output end of the servo motor (321) and the servo electric cylinder (322).
5. The rigid-flexible sliding electrical contact testing device according to claim 1, wherein the data acquisition mechanism (5) comprises a normal force sensor (51) arranged between the slider lifting group (32) and the test slider (34), a tangential force sensor (52) arranged beside the clamping member (33), a voltage sensor (53) arranged between the contact wire (43) and the clamping member (33), a current sensor (54) arranged between the clamping member (33) and the power supply (7), and an infrared imager (55) and a decibel tester (56) arranged on the frame (1);
the data acquisition mechanism (5) further comprises a signal amplifier (57) connected with the voltage sensor (53), the current sensor (54), the normal force sensor (51) and the tangential force sensor (52) respectively and a data acquisition card (58) connected with the output end of the signal amplifier (57), wherein the output end of the data acquisition card (58), the output end of the infrared imager (55) and the output end of the decibel tester (56) are connected with the control mechanism (6).
6. The rigid-flexible sliding electrical contact testing apparatus according to claim 5, wherein an insulating film (521) is provided between the tangential force sensor (52) and the clamping member (33), and an insulating plate (511) is provided between the normal force sensor (51) and the clamping member (33).
7. The rigid-flexible combined sliding electrical contact test device according to claim 1, wherein a grounding device (8) is arranged on the rack (1), the positive pole of the power supply (7) and the fixed support (41), the clamping member (33) and the grounding device (8) and the negative pole of the power supply (7) are electrically connected through a conducting wire (81), and a current limiting resistor (71) is further arranged between the positive pole of the power supply (7) and the fixed support (41).
8. The rigid-flexible sliding electrical contact test device according to claim 1, wherein the rotating mechanism (2) comprises a variable frequency motor (21) arranged on the frame (1) and connected with the control mechanism (6), and a worm transmission structure (22) arranged between the output end of the variable frequency motor (21) and the rotating bracket (31).
9. The rigid-flexible sliding electrical contact test device according to claim 1, wherein the control mechanism (6) comprises a console (61), a display screen (62) arranged on the console (61), a computer terminal (63) arranged in the console (61), a speed control module (64) connected with the variable frequency motor (21), a power control module (65) connected with the power supply (7), a pressure application module (66) connected with the servo motor (321) and a data display module (67) electrically connected with the display screen (62), and the speed control module (64), the power control module (65), the pressure application module (66) and the data display module (67) are all connected with the computer terminal (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265502.8U CN211292022U (en) | 2020-03-06 | 2020-03-06 | Sliding electric contact test device with rigid and flexible combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265502.8U CN211292022U (en) | 2020-03-06 | 2020-03-06 | Sliding electric contact test device with rigid and flexible combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211292022U true CN211292022U (en) | 2020-08-18 |
Family
ID=72022852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020265502.8U Active CN211292022U (en) | 2020-03-06 | 2020-03-06 | Sliding electric contact test device with rigid and flexible combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211292022U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189655A (en) * | 2020-03-06 | 2020-05-22 | 西南交通大学 | Rigid-flexible combined sliding electrical contact test device and test method |
| CN113533438A (en) * | 2021-07-26 | 2021-10-22 | 中国科学院宁波材料技术与工程研究所 | In-situ testing device and method for friction arc burning loss of electric contact material |
| CN114325109A (en) * | 2021-12-24 | 2022-04-12 | 上海申和投资有限公司 | Method for measuring conductivity of cylindrical crystal bar |
-
2020
- 2020-03-06 CN CN202020265502.8U patent/CN211292022U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189655A (en) * | 2020-03-06 | 2020-05-22 | 西南交通大学 | Rigid-flexible combined sliding electrical contact test device and test method |
| CN113533438A (en) * | 2021-07-26 | 2021-10-22 | 中国科学院宁波材料技术与工程研究所 | In-situ testing device and method for friction arc burning loss of electric contact material |
| CN113533438B (en) * | 2021-07-26 | 2024-04-09 | 中国科学院宁波材料技术与工程研究所 | In-situ testing device and method for friction arc burning loss of electric contact material |
| CN114325109A (en) * | 2021-12-24 | 2022-04-12 | 上海申和投资有限公司 | Method for measuring conductivity of cylindrical crystal bar |
| CN114325109B (en) * | 2021-12-24 | 2024-05-28 | 上海申和投资有限公司 | Method for measuring conductivity of cylindrical crystal bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111189655A (en) | Rigid-flexible combined sliding electrical contact test device and test method | |
| CN211292022U (en) | Sliding electric contact test device with rigid and flexible combination | |
| CN107179480A (en) | A kind of electric power cable fault test set | |
| CN112881943B (en) | Insulator leakage current measuring device based on tunnel magnetic resistance chip | |
| CN211867800U (en) | Tunnel track inspection robot | |
| CN217212970U (en) | High-voltage insulator detection robot | |
| CN108598992A (en) | A kind of cable detection attachment device | |
| CN214374986U (en) | Voltage detection temperature measuring equipment for power grid | |
| CN103616638B (en) | The performance test of track traffic drum-shape linear induction traction electric machine presents device mutually | |
| CN104764955A (en) | Testing device for track car non-contact electric energy transmission system and testing method of testing device | |
| CN201017020Y (en) | Electric thin plastic film electric foible tester for | |
| CN108533050A (en) | A kind of shaft tower and its detection method that can detect inclination angle automatically | |
| CN102901645B (en) | Automatic monitoring system and method for brake cylinder state in wind testing work under railway train examination | |
| CN216372238U (en) | Transformer substation inspection robot | |
| CN214924439U (en) | GIS equipment inspection robot walking device | |
| CN107449616B (en) | A kind of automobile parts resistance to compression detection device | |
| CN115200535A (en) | Two-axis-driven angle sensor calibration device and method | |
| CN114325246A (en) | Electrified railway contact net fault range unit | |
| CN107063887A (en) | A kind of lap siding wire twist testing stand machine | |
| CN2217216Y (en) | Arrangement for measuring the height of gas cabinet with moveable cable | |
| CN116930832B (en) | Superconducting electric magnetic levitation track fault detection device and method | |
| CN112643687B (en) | Transformer substation GIS equipment inspection robot walking device | |
| CN219624813U (en) | Cable on-line comprehensive monitoring device | |
| CN111932878B (en) | Road surface integrated sensor for networked traffic management | |
| CN108627703A (en) | A kind of tower bar grounding resistance monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |