CN113484008A - Measuring device for parameter calibration of carbon slipper of current collector and using method thereof - Google Patents
Measuring device for parameter calibration of carbon slipper of current collector and using method thereof Download PDFInfo
- Publication number
- CN113484008A CN113484008A CN202110900792.8A CN202110900792A CN113484008A CN 113484008 A CN113484008 A CN 113484008A CN 202110900792 A CN202110900792 A CN 202110900792A CN 113484008 A CN113484008 A CN 113484008A
- Authority
- CN
- China
- Prior art keywords
- sliding shoe
- value
- scale
- carbon
- carbon sliding
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 141
- 229910052799 carbon Inorganic materials 0.000 title claims description 141
- 238000000034 method Methods 0.000 title claims description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 38
- 238000007906 compression Methods 0.000 claims description 13
- 238000012795 verification Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The measuring device comprises a movable trolley platform, a fixed lifting seat, a hand wheel rack mechanism, a vertical lifting seat, a vertical height pointer and a pressure gauge, wherein the fixed lifting seat, the hand wheel rack mechanism, the vertical lifting seat, the vertical height pointer and the pressure gauge jointly form a vertical lifting measuring mechanism. The vertical lifting seat driven by the hand wheel and the rack transmission mechanism is utilized, so that the operation convenience and stability of the pressure gauge during lifting along the plumb direction are ensured, and the precision of a displacement measurement result and the precision of a pressure detection result are greatly improved; the device is applied to realize the field measurement of the vehicle current collector, the disassembly, the assembly and the transportation of the current collector are avoided, the working time is shortened, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of parameter verification of a carbon slipper of a current collector of a railway vehicle, and particularly relates to a measuring device for parameter verification of the carbon slipper of the current collector and a using method thereof.
Background
The schematic diagram of the structural principle of a carbon slipper mechanism of a railway train current collector powered by a third rail is shown in fig. 1, and a carbon slipper rotating arm A rotates around a carbon slipper rotating arm rotating shaft B within a certain angle range under the driving of an elastic component formed by a spring T, a rubber elastic bearing and a spring slideway, so that the vertical distance value from a carbon slipper C to the end face E of the third rail is changed.
As shown in fig. 1-a of fig. 1, in the uncompressed free state of the elastic element, the carbon shoe C of the carbon shoe pivot arm a has an initial vertical height H0 from the third rail end face E; as shown in fig. 1-b of fig. 1, under the standard working pressure condition given by the design drawing, the elastic element is in a slightly compressed state, and the vertical height of the carbon sliding shoe C of the carbon sliding shoe rotating arm a from the contact state of the third rail end face E is an acceptance standard height value H1; as shown in fig. 1-C of fig. 1, in a state where the elastic element reaches its compression limit, the carbon shoe C of the carbon shoe pivot arm a has a limit-state vertical height H2 from the third rail end face E.
Under actual working conditions, the actual vertical height H of the carbon sliding shoe C from the end face E of the third rail is within the interval range of H1 and H2, and the static contact pressure value of the carbon sliding shoe C to the third rail needs to fall within the acceptance range of 120N +/-24N. If the static contact pressure value of the carbon sliding shoe C is smaller than the range due to excessive abrasion, poor contact of a current collector circuit is caused; on the contrary, if elastic parts such as the spring slideway and the like sag due to looseness, and the static contact pressure value exceeds the range, the carbon sliding shoes are abraded too fast, and even when the train passes through a three-rail gradient transition section, the carbon sliding shoes are damaged due to too large friction force and impact resistance. For this reason, as a vulnerable part with a large abrasion amount, the carbon slipper mechanism needs to accept measurement and acceptance of the static contact pressure value again when the train enters into regular maintenance and overhaul.
In the existing measuring and acceptance method, one operator manually overcomes the elasticity of an elastic element, the carbon sliding shoes C are respectively maintained at a given contact state vertical height H1, and the other operator respectively measures and records the result by using a handheld pressure gauge, so that the measuring process is limited in operation space, complex and reversely locked in the operation process, poor in precision, waste of human resources and labor time, and low in efficiency.
Disclosure of Invention
The invention provides a measuring device for parameter calibration of a carbon slipper of a current collector and a using method thereof, aiming at solving the technical problems that when an existing carbon slipper mechanism for interval limitation by an elastic component is subjected to static contact pressure acceptance test, measurement can be completed only by matching of a plurality of operators in a labor-sharing manner, the measurement process is complex and reversely locked, the precision is poor, human resources are wasted, and the efficiency is low.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the measuring device for parameter calibration of the carbon sliding shoe of the current collector comprises a pressure gauge, wherein the pressure gauge comprises a measuring mechanism, a compressed inner-compression measuring rod, an outer-stretching out-type measuring rod, a number-indicating locking button and an indicating disc, the outer-stretching out-type measuring rod and the compressed inner-compression measuring rod are long rod mechanisms which are fixedly connected with each other, and the outer-stretching out-type measuring rod and the compressed inner-compression measuring rod respectively extend out of the upper part and the lower part of the measuring mechanism; the method is characterized in that: the measuring device also comprises a movable trolley platform, a fixed hanging seat, a hand wheel rack mechanism, a vertical lifting seat and a vertical height pointer; the fixed hanging seat, the hand wheel rack mechanism, the vertical lifting seat, the vertical height pointer and the pressure gauge form a vertical lifting measuring mechanism;
the fixed hanging seat is fixedly connected to the upper part of the movable trolley platform in a hanging mode through a support, through gear rotating shaft through holes are formed in the left side wall and the right side wall of the fixed hanging seat, an elevation scale ruler in the plumb direction is arranged on the left side wall of the fixed hanging seat, and the front end of the fixed hanging seat is of an open structure formed by two parallel sliding rails in the plumb arrangement;
the hand wheel rack mechanism comprises a gear, a rack and a driving hand wheel, and the gear is positioned inside the fixed hanging seat; the driving hand wheel is positioned outside the left side wall of the fixed hanging seat, the hand wheel rotating shaft of the driving hand wheel is respectively and rotationally connected with the gear rotating shaft through holes which are in one-to-one correspondence on the left side wall and the right side wall of the fixed hanging seat through bearings, and the gear is coaxially and fixedly connected with the middle section of the hand wheel rotating shaft;
the vertical lifting seat comprises a price-raising sliding block seat plate, two sliding rail clamping grooves and two pressure gauge fixing seats, wherein the two sliding rail clamping grooves are parallel to each other and fixedly connected to the left side and the right side of the rear end face of the price-raising sliding block seat plate in a plumb posture; the price-raising slide block seat plate and the parallel slide rails which are in one-to-one correspondence form a slide rail slide block mechanism which can be vertically raised and lowered respectively through two slide rail clamping grooves; the two pressure gauge fixing seats are fixedly connected to the upper part and the lower part of the front end face of the price raising slide block seat plate respectively; the measuring mechanism is fixedly connected with the front end face of the price-raising slide block base plate through two pressure gauge fixing seats, and an outer stretching out type measuring rod and a compressed inner compressing measuring rod are arranged along the direction of the plumb bob; the rack is fixedly connected to the vertical middle line of the rear end face of the price-raising sliding block seat plate, and the tooth surface of the rack is meshed with the gear to form a rack transmission mechanism;
the vertical height pointer is fixedly connected to the upper portion of the front end face or the left end face of the price raising sliding block seat plate, the tip end of the pointer and the elevation scale jointly form a vertical height scale degree mechanism, and when the pressure gauge is in a free state free of any external force and the number of the indicating dial is zero after calibration, the pointer tip end of the vertical height pointer is just overlapped with a zero scale mark at the top of the elevation scale.
The outer stretching type measuring rod is additionally provided with a compensation graduated scale which is arranged along the axial direction of the outer stretching type measuring rod, and when the pressure gauge is in a free state which is free from any external force and the number of the indicating dial of the pressure gauge is zero after calibration, the zero graduation line of the compensation graduated scale is just in the same horizontal plane with the upper end face of the measuring mechanism.
The compensation graduated scale is a millimeter graduated scale, and a positive value graduated area and a negative value graduated area of the compensation graduated scale are in mirror symmetry with respect to a zero graduation line of the compensation graduated scale; when the pressure gauge is in a free state without any external force after calibration and the reading of the indicating dial of the pressure gauge is zero, the positive-value scale area of the compensation ruler is positioned above the upper end surface of the measuring mechanism, and the negative-value scale area of the compensation ruler is shielded in the measuring mechanism; the maximum travel of the vertical lifting seat from high to low vertical is larger than H2.
The compensation graduated scale is a transparent film with graduation lines and is coaxially and fixedly connected on the outer diameter of the external stretching-out type measuring rod in a sticking mode.
The compensation graduated scale is processed and manufactured in the modes of paint spraying, dye drawing or carving, corrosion and the like and is generated on the outer diameter of the externally-stretched measuring rod.
The use method of the measuring device for verifying the parameters of the carbon slipper of the current collector is characterized in that: the method comprises the following steps:
the method comprises the following steps: the device is moved to the vicinity of a given carbon sliding shoe rotating arm to be measured on the workshop ground by using a movable trolley platform, and a compressed inner-compression measuring rod is positioned right above the carbon sliding shoe;
step two: manually rotating the driving hand wheel to drive the vertical lifting seat to rise to the highest point through the rack transmission mechanism, and enabling the pressure gauge to be in a free state without any external force and with zero indication number of an indication plate; at the moment, the elastic element is in an uncompressed free state, the carbon sliding shoe rotating arm does not rotate around the rotating shaft of the carbon sliding shoe rotating arm, and the initial vertical height of the carbon sliding shoe from the end face of the three-rail is H0; at the moment, the pointer tip of the vertical height pointer is just overlapped with the zero scale mark at the top of the elevation scale, and the distance difference L0 between the pointer tip and the zero scale mark is 0 mm; meanwhile, the zero scale mark of the compensation scale is superposed with the upper end face of the measuring mechanism, and the distance difference D0 between the zero scale mark and the upper end face of the measuring mechanism is 0 mm;
step three: manually rotating a driving hand wheel to drive the vertical lifting seat to slowly descend through a rack transmission mechanism, and stopping the vertical lifting seat from descending and keeping the vertical lifting seat still when the indication number of the indicating disc is kept to be zero and the compressed inner compression measuring rod is just contacted with the upper end surface of the carbon sliding shoe; at the moment, the elastic element is still in an uncompressed free state, the carbon sliding shoe rotating arm does not rotate around the rotating shaft of the carbon sliding shoe rotating arm, and the initial vertical height of the carbon sliding shoe from the end face of the three rails is still H0; recording the distance difference L between the pointer tip of the vertical height pointer and the zero scale line of the scale mark scale1And recording the pressure value index value N1 of the current indicating disc; in addition, the zero scale mark of the compensation scale still coincides with the upper end surface of the measuring mechanism, so the distance difference between the zero scale mark and the upper end surface of the measuring mechanism is still D0-0 mm;
step four: go further toThe driving hand wheel is rotated to drive the vertical lifting seat to slowly descend through the rack transmission mechanism, and the compressed and retracted measuring rod presses the carbon sliding shoes so as to drive the carbon sliding shoe rotating arms to rotate around the carbon sliding shoe rotating arm rotating axis to a low position; when the height value of the carbon sliding shoe from the end surface E of the third rail is just the acceptance standard height value H1, stopping the vertical lifting seat from descending and keeping the vertical lifting seat still; then, the distance difference L between the pointer tip of the vertical height pointer and the zero scale mark of the scale mark scale is recorded2And recording the pressure value index value N2 of the current indicating disc; simultaneously, recording the distance difference D1 between the zero scale mark of the compensation scale and the upper end surface of the measuring mechanism;
step five: solving and recording a result of (H0-H1) + (D0-D1) … … of DeltaL (L2-L1), wherein DeltaL is an actual height difference of vertical movement of the carbon sliding shoe relative to the end face E of the third rail when the carbon sliding shoe moves downwards from the H0 in the third step to the H1 in the fourth step after the error introduced by the displacement of the long-rod mechanism is eliminated;
step six: solving and recording the result of N-N2-N1 … …, determining whether the result of the N value obtained by the formula falls within the theoretical standard interval range of the static contact pressure value of [96, 144] Newton, and if the value of N falls within the range of the standard interval, determining that the static contact pressure value of the carbon sliding shoe which is measured and verified at present is qualified, wherein the carbon sliding shoe does not need to be adjusted; if the N value is less than 96 newtons, executing a seventh step; if the N value is larger than 144N, executing step eight;
step seven: calculating the difference between the N value and 96 newtons to be used as the loss amount of the minimum static pressure value of the carbon sliding shoe caused by mechanical abrasion of the currently measured carbon sliding shoe; if the loss amount of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the loss amount of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, increasing the spring pressure by axially moving the initial fastening position of the spring T in the spring slideway or thickening the spring base of the spring T, and enabling the static contact pressure value of the carbon sliding shoe when the height value of the delta L from the end face E of the third rail in the step six is just equal to the theoretical standard value of 120N again when the height value of the carbon sliding shoe from the end face E of the third rail is the acceptance standard height value H1;
step eight; calculating the difference value between the N value and 144 newtons to serve as the increment of the maximum static pressure value of the carbon sliding shoe caused by the loosening of the elastic component of the carbon sliding shoe measured currently; if the increment of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the increment of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, reducing the spring pressure by axially moving the initial fastening position of the spring T in the spring slideway or reducing the quantity of the spring base gaskets of the spring T, and enabling the static contact pressure value of the carbon sliding shoe when the height value of the delta L from the third rail end face E in the step six is just equal to the theoretical standard value of 120N again when the height value of the carbon sliding shoe is the acceptance standard height value H1;
step nine: and re-executing the testing and verifying steps consistent with the step eight until the acceptance is qualified.
The invention has the beneficial effects that: the measuring device for parameter calibration of the carbon sliding shoe of the current collector and the using method thereof utilize the vertical lifting seat driven by the hand wheel and the rack transmission mechanism, so that the operation convenience and stability of the pressure gauge during lifting along the plumb direction are ensured, and the precision of a displacement measuring result and a pressure detection result is greatly improved.
The compensation graduated scale makes full use of the existing pressure gauge with a given model, the external stretching out type measuring rod and the compressed internal contraction measuring rod are long rod mechanisms which are fixedly connected with each other, the two extend out from the upper part and the lower part of the measuring mechanism respectively, the inherent principles and attributes of the two in the plumb direction are completely the same, and the improvement of the simple but significant effect is carried out, so that the measuring device can obtain accurate vertical displacement compensation amount directly through the compensation graduated scale while accurately measuring the pressure value of the carbon slipper at a given height position, and further solve the actual height difference Delta L of the vertical movement of the carbon slipper relative to the end surface of a third rail after compensation, thereby being convenient to determine the actual height position of the carbon slipper at a given height value H1 subsequently, and further conveniently and quickly realizing the correction of the static pressure value of the carbon slipper elastic part, and the problems of difficult measurement and poor measurement accuracy in the pressure detection of the carbon slipper of the current collector in the actual operation are solved.
The device is applied to realize the field measurement of the vehicle current collector, the disassembly, the assembly and the transportation of the current collector are avoided, the working time is shortened, the working efficiency is improved, and in addition, the measuring device for the carbon slipper parameter calibration of the current collector also has the advantages of simple and practical structure, flexible movement, convenient operation, low cost, convenient popularization and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of a conventional carbon slipper mechanism and the static contact pressure value measurement parameter thereof;
FIG. 2 is a perspective view of a measuring device for parameter calibration of a carbon slipper of a current collector according to the invention;
FIG. 3 is an exploded assembly schematic of the movable trolley platform and vertical lift measurement mechanism of the present invention;
FIG. 4 is an exploded assembly schematic view of the vertical lift measurement mechanism of the present invention;
FIG. 5 is a left side view of the vertical lift measurement mechanism of the present invention;
FIG. 6 is a top view of the vertical lift measurement mechanism of the present invention;
fig. 7 is an application schematic diagram of the measuring device for parameter calibration of the carbon sliding shoe of the current collector in a state that the vertical lifting seat is lifted to the highest point and the pointer tip of the vertical height pointer is just overlapped with the zero scale mark at the topmost part of the scale mark scale;
FIG. 8 is an enlarged view of a portion I of FIG. 7;
FIG. 9 is an application schematic diagram of the measuring device for parameter calibration of the carbon slipper of the current collector in a free state of keeping the index of the indicating dial to be zero and in a state of just contacting the upper end face of the carbon slipper by the compressed inner-compression measuring rod;
fig. 10 is a partial enlarged view of portion II of fig. 9;
fig. 11 is an application schematic diagram of the measuring device for parameter calibration of the carbon slipper of the current collector in the state that the carbon slipper is pressed by the inner contraction measuring rod to move downwards until the height value E from the third rail end face is just the acceptance standard height value H1;
fig. 12 is a partially enlarged view of the portion III in fig. 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2 to 6, the measuring device for parameter calibration of the carbon slipper shoe of the current collector comprises a movable trolley platform 1, a fixed hanging seat 2, a hand wheel rack mechanism 3, a vertical lifting seat 4, a vertical height pointer 5 and a pressure gauge 6, wherein the pressure gauge 6 comprises a measuring mechanism 6-1, a compressed inner-contracted measuring rod 6-2, an outer extended out-type measuring rod 6-3, a number indicating locking button 6-4 and an indicating disc 6-5, the outer extended out-type measuring rod 6-3 and the compressed inner-contracted measuring rod 6-2 are long rod mechanisms fixedly connected with each other, and the two long rod mechanisms respectively extend out from the upper part and the lower part of the measuring mechanism 6-1; the fixed hanging seat 2, the hand wheel rack mechanism 3, the vertical lifting seat 4, the vertical height pointer 5 and the pressure gauge 6 form a vertical lifting measuring mechanism; the fixed hanging seat 2 is fixedly connected to the upper portion of the movable trolley platform 1 in a hanging mode through a support, a through gear rotating shaft through hole 2-1 is formed in the left side wall and the right side wall of the fixed hanging seat 2, an elevation scale 2-2 in the plumb direction is arranged on the left side wall of the fixed hanging seat 2, and the front end of the fixed hanging seat 2 is of an open structure formed by two parallel sliding rails 2-3 in plumb arrangement.
The hand wheel rack mechanism 3 comprises a gear 3-1, a rack 3-2 and a driving hand wheel 3-3, wherein the gear 3-1 is positioned inside the fixed hanging seat 2; the driving hand wheel 3-3 is positioned outside the left side wall of the fixed hanging seat 2, the hand wheel rotating shaft 3-3-1 is respectively and rotatably connected with the gear rotating shaft through holes 2-1 which are in one-to-one correspondence on the left side wall and the right side wall of the fixed hanging seat 2 through bearings, and the gear 3-1 is coaxially and fixedly connected with the middle section of the hand wheel rotating shaft 3-3-1.
The vertical lifting seat 4 comprises a price-raising sliding block seat plate 4-1, two sliding rail clamping grooves 4-2 and two pressure gauge fixing seats 4-3, wherein the two sliding rail clamping grooves 4-2 are parallel to each other, and the two sliding rail clamping grooves are fixedly connected to the left side and the right side of the rear end face of the price-raising sliding block seat plate 4-1 in a plumb posture; the price-raising slide block seat plate 4-1 and the one-to-one corresponding parallel slide rails 2-3 form a vertically-lifting slide rail slide block mechanism through two slide rail clamping grooves 4-2 respectively; the two pressure gauge fixing seats 4-3 are respectively fixedly connected to the upper part and the lower part of the front end face of the price raising slide block seat plate 4-1; the measuring mechanism 6-1 is fixedly connected with the front end face of the price-raising slide block seat plate 4-1 through two pressure gauge fixing seats 4-3, and an outer stretching type measuring rod 6-3 and a compressed inner contraction measuring rod 6-2 are arranged along the plumb direction; the rack 3-2 is fixedly connected to the vertical middle line of the rear end face of the price-raising sliding block seat plate 4-1, and the tooth surface of the rack 3-2 is meshed with the gear 3-1 to form a rack transmission mechanism together.
The vertical height pointer 5 is fixedly connected to the upper part of the front end face or the left end face of the price raising sliding block seat plate 4-1, the tip end of the pointer and the elevation scale 2-2 jointly form a vertical height scale degree mechanism, and when the pressure gauge 6 is in a free state free of any external force and the number of the indicating disc 6-5 is zero after calibration, the pointer tip end of the vertical height pointer 5 is just overlapped with a zero scale line at the top of the elevation scale 2-2.
The outer stretching out type measuring rod 6-3 is additionally provided with a compensation graduated scale 6-3-1 which is arranged along the axial direction of the outer stretching out type measuring rod, and when the pressure gauge 6 is in a free state which is free from any external force and the number of the indicating dial 6-5 of the pressure gauge is zero after calibration, the zero graduation line of the compensation graduated scale 6-3-1 is just in the same horizontal plane with the upper end face of the measuring mechanism 6-1.
The compensation graduated scale 6-3-1 is a millimeter graduated scale, and a positive value graduated area and a negative value graduated area of the compensation graduated scale are in mirror symmetry with respect to a zero graduated line of the compensation graduated scale; when the pressure gauge 6 is in a free state without any external force after calibration and the index of the indicating dial 6-5 is zero, the positive scale area of the compensation ruler is positioned above the upper end surface of the measuring mechanism 6-1, and the negative scale area of the compensation ruler is shielded inside the measuring mechanism 6-1; the maximum travel of the vertical lifting seat 4 from high to low vertical is larger than H2.
The compensation graduated scale 6-3-1 is a transparent film with graduation lines and is coaxially and fixedly connected to the outer diameter of the external stretching-out type measuring rod 6-3 in a sticking mode.
The compensation graduated scale 6-3-1 is processed and manufactured in the modes of paint spraying, dye painting or carving, corrosion and the like and is generated on the outer diameter of the measuring rod 6-3 which extends out of the outer stretching mode.
The pressure gauge 6 of the present invention is a digital pull pressure gauge of japanese ALGOL (argo) brand NK300 type, and its rated maximum test range: 300 N.30kgf; minimum scale: 2.0 N.200gf; measuring range: 10 mm;
when the measuring device for carbon slipper parameter verification is used for measuring and verifying the static contact pressure value of the carbon slipper mechanism, the method comprises the following operation steps:
the method comprises the following steps: as shown in fig. 7 and 8, first, the device is moved on the floor of the workshop to the vicinity of a rotating arm a of a given carbon shoe to be measured by using the movable cart platform 1, and the compressed inner-compression measuring rod 6-2 is positioned right above the carbon shoe C;
step two: manually rotating the driving hand wheel 3-3 to drive the vertical lifting seat 4 to rise to the highest point through the rack transmission mechanism, and enabling the pressure gauge 6 to be in a free state without any external force and with zero indication number of the indicating disc 6-5; at the moment, when the elastic element is in an uncompressed free state, the carbon sliding shoe rotating arm A does not rotate around the carbon sliding shoe rotating arm rotating shaft B, and the initial vertical height of the carbon sliding shoe C from the end face E of the three-rail is H0; at the moment, the pointer tip of the vertical height pointer 5 is just overlapped with the zero scale mark at the topmost part of the elevation scale 2-2, and the distance difference L0 between the pointer tip and the zero scale mark is 0 mm; meanwhile, the zero scale mark of the compensation scale 6-3-1 is superposed with the upper end face of the measuring mechanism 6-1, and the distance difference D0 between the zero scale mark and the upper end face of the measuring mechanism is 0 mm;
step three: as shown in fig. 9 and 10, the hand wheel 3-3 is driven by manual rotation to drive the vertical lifting seat 4 to slowly descend through the rack transmission mechanism, and when the free state that the indication number of the indicating dial 6-5 is zero is kept and the compressed inner-compression measuring rod 6-2 is just contacted with the upper end surface of the carbon sliding shoe C, the vertical lifting seat 4 stops descending and is kept still; at this time, the elastic element is still in an uncompressed free state, the carbon sliding shoe rotating arm A does not rotate around the carbon sliding shoe rotating arm rotating shaft B, and the initial vertical height of the carbon sliding shoe C from the end face E of the three-rail is still H0; recording the distance difference L between the pointer tip of the vertical height pointer 5 and the zero scale line 2-2 of the elevation scale1And recording the pressure value index value N1 of the current indicator panel 6-5; in addition, the zero graduation line of the compensation graduated scale 6-3-1 and the measuring mechanism 61, the upper end faces are still overlapped, so that the distance difference between the upper end faces and the lower end face is still D0-0 mm;
step four: as shown in fig. 11 and 12, the hand wheel 3-3 is further driven by rotation to slowly descend through the rack transmission mechanism to drive the vertical lifting seat 4, and the compressed inward-contracting measuring rod 6-2 presses the carbon slipper C to drive the carbon slipper rotating arm a to rotate to a low position around the carbon slipper rotating arm rotating shaft B; when the height value of the carbon sliding shoe C from the end surface E of the third rail is just the acceptance standard height value H1, stopping the vertical lifting seat 4 from descending and keeping the vertical lifting seat still; thereafter, the difference L between the distance from the tip of the vertical height indicator 5 to the zero graduation line of the level graduation scale 2-2 is recorded2And recording the pressure value index value N2 of the current indicator panel 6-5; meanwhile, recording the distance difference D1 between the zero scale mark of the compensation scale 6-3-1 and the upper end face of the measuring mechanism 6-1;
step five: solving and recording a result of (H0-H1) + (D0-D1) … … (1) of Δ L2-L1, where Δ L is an actual height difference of vertical motion of the carbon shoe C relative to the third rail end face E when the carbon shoe C moves down from H0 in the third step to H1 in the fourth step after an error introduced by displacement of the long-rod mechanism itself is eliminated;
step six: solving and recording the result of N-N2-N1 … … (2), and checking whether the N value result obtained by the formula (2) falls within the theoretical standard interval range of the static contact pressure value of [96, 144] Newton, if the N value falls within the standard interval range, judging that the static contact pressure value of the carbon slipper C which is measured and verified at present is qualified, and the carbon slipper C does not need to be adjusted; if the N value is less than 96 newtons, executing a seventh step; if the N value is larger than 144N, executing step eight;
step seven: calculating the difference between the N value and 96 newtons to be used as the loss amount of the minimum static pressure value of the carbon sliding shoe C caused by mechanical abrasion measured at present; if the loss amount of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the loss of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm A, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, increasing the pressure of the spring by axially moving the initial fastening position of the spring T in the spring slideway or thickening the spring base of the spring T, and enabling the static contact pressure value of the carbon sliding shoe C when the height value of the delta L from the third rail end face E in the step six is just equal to the theoretical standard value of 120N again when the height value of the carbon sliding shoe C from the third rail end face E is the acceptance standard height value H1;
step eight; calculating the difference value between the N value and 144 newtons to serve as the increment of the maximum static pressure value of the carbon sliding shoe C caused by the looseness of the elastic component measured currently; if the increment of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the increment of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm A, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, reducing the spring pressure by axially moving the initial fastening position of the spring T in the spring slideway or reducing the quantity of the spring base gaskets of the spring T, and enabling the static contact pressure value of the carbon sliding shoe C when the height value of the delta L from the third rail end face E in the step six is just equal to the theoretical standard value of 120N again when the height value of the carbon sliding shoe C is the acceptance standard height value H1;
step nine: and re-executing the testing and verifying steps consistent with the step eight until the acceptance is qualified.
Claims (6)
1. The measuring device for parameter calibration of the carbon sliding shoe of the current collector comprises a pressure gauge (6), wherein the pressure gauge (6) comprises a measuring mechanism (6-1), a compressed inner-compression measuring rod (6-2), an outer-extension out-type measuring rod (6-3), a number-indicating locking button (6-4) and an indicating disc (6-5), the outer-extension out-type measuring rod (6-3) and the compressed inner-compression measuring rod (6-2) are long rod mechanisms fixedly connected with each other, and the outer-extension out-type measuring rod and the compressed inner-compression measuring rod respectively extend out of the upper part and the lower part of the measuring mechanism (6-1); the method is characterized in that: the measuring device also comprises a movable trolley platform (1), a fixed hanging seat (2), a hand wheel rack mechanism (3), a vertical lifting seat (4) and a vertical height pointer (5); wherein the fixed hanging seat (2), the hand wheel rack mechanism (3), the vertical lifting seat (4), the vertical height pointer (5) and the pressure gauge (6) form a vertical lifting measuring mechanism;
the movable trolley platform is characterized in that the fixed hanging seat (2) is fixedly connected to the upper part of the movable trolley platform (1) in a hanging mode through a support, a through gear rotating shaft through hole (2-1) is formed in the left side wall and the right side wall of the fixed hanging seat (2), an elevation scale (2-2) in the plumb direction is arranged on the left side wall of the fixed hanging seat (2), and the front end of the fixed hanging seat (2) is of an open structure formed by two parallel sliding rails (2-3) in plumb arrangement;
the hand wheel rack mechanism (3) comprises a gear (3-1), a rack (3-2) and a driving hand wheel (3-3), wherein the gear (3-1) is positioned inside the fixed hanging seat (2); the driving hand wheel (3-3) is positioned outside the left side wall of the fixed hanging seat (2), a hand wheel rotating shaft (3-3-1) is respectively and rotationally connected with the gear rotating shaft through holes (2-1) which are in one-to-one correspondence on the left side wall and the right side wall of the fixed hanging seat (2) through bearings, and the gear (3-1) is coaxially and fixedly connected with the middle section of the hand wheel rotating shaft (3-3-1);
the vertical lifting seat (4) comprises a price-raising sliding block seat plate (4-1), two sliding rail clamping grooves (4-2) and two pressure gauge fixing seats (4-3), wherein the two sliding rail clamping grooves (4-2) are parallel to each other, and the two sliding rail clamping grooves are fixedly connected to the left side and the right side of the rear end face of the price-raising sliding block seat plate (4-1) in a plumb posture; the price-raising slide block seat plate (4-1) and the parallel slide rails (2-3) which correspond one to one through two slide rail clamping grooves (4-2) respectively form a slide rail slide block mechanism which vertically rises and falls; the two pressure gauge fixing seats (4-3) are respectively and fixedly connected with the upper part and the lower part of the front end surface of the price raising slide block seat plate (4-1); the measuring mechanism (6-1) is fixedly connected with the front end face of the price-raising slide block seat plate (4-1) through two pressure gauge fixing seats (4-3), and an outer stretching type measuring rod (6-3) and a compressed inner contraction measuring rod (6-2) are arranged along the direction of the plumb bob; the rack (3-2) is fixedly connected to the vertical middle line of the rear end face of the price-raising sliding block seat plate (4-1), and the tooth surface of the rack (3-2) is meshed with the gear (3-1) to form a rack transmission mechanism together;
the vertical height pointer (5) is fixedly connected to the upper portion of the front end face or the left end face of the price raising sliding block seat plate (4-1), the tip end of the pointer and the elevation scale (2-2) jointly form a vertical height scale degree mechanism, and when the pressure gauge (6) is in a free state which is free of any external force and the number of the indicating disc (6-5) is zero after calibration, the pointer tip end of the vertical height pointer (5) is just overlapped with a zero scale line at the top of the elevation scale (2-2).
2. The measurement device for current collector carbon slipper parametric verification of claim 1, wherein: the outer stretching out type measuring rod (6-3) is additionally provided with a compensation graduated scale (6-3-1) which is arranged along the axial direction of the outer stretching out type measuring rod, and when the pressure gauge (6) is in a free state which is free from any external force and the number of the indicating disc (6-5) of the pressure gauge is zero after calibration, the zero graduated scale line of the compensation graduated scale (6-3-1) is just in the same horizontal plane with the upper end surface of the measuring mechanism (6-1).
3. The measurement device for current collector carbon slipper parametric verification of claim 2, wherein: the compensation graduated scale (6-3-1) is a millimeter graduated scale, and a positive value graduated area and a negative value graduated area of the compensation graduated scale are in mirror symmetry with respect to a zero graduation line of the compensation graduated scale; when the pressure gauge (6) is in a free state which is free from any external force and the number of the indicating dial (6-5) of the pressure gauge is zero after calibration, the positive value scale area of the compensation ruler is positioned above the upper end surface of the measuring mechanism (6-1), and the negative value scale area of the compensation ruler is shielded inside the measuring mechanism (6-1); the maximum stroke of the vertical lifting seat (4) from high to low vertical movement is larger than H2.
4. A measurement device for current collector carbon slipper parametric verification as defined in claim 3, wherein: the compensation graduated scale (6-3-1) is a transparent film with graduation lines and is coaxially and fixedly connected to the outer diameter of the external stretching-out type measuring rod (6-3) in a sticking mode.
5. A measurement device for current collector carbon slipper parametric verification as defined in claim 3, wherein: the compensation graduated scale (6-3-1) is processed and manufactured in the modes of paint spraying, dye drawing or carving, corrosion and the like and is generated on the outer diameter of the external stretching out type measuring rod (6-3).
6. Use of a measuring device for the parametric verification of a carbon slipper of a current collector according to any of the preceding claims, wherein: the method comprises the following steps:
the method comprises the following steps: the device is moved to the vicinity of a given carbon sliding shoe rotating arm (A) to be measured on the workshop ground by using a movable trolley platform (1), and a compressed inner-compression measuring rod (6-2) is positioned right above a carbon sliding shoe (C);
step two: the hand wheel (3-3) is driven by manual rotation to drive the vertical lifting seat (4) to rise to the highest point through the rack transmission mechanism, and the pressure gauge (6) is in a free state without any external force and the indication number of the indication plate (6-5) is zero; at the moment, the elastic element is in an uncompressed free state, the carbon sliding shoe rotating arm (A) does not rotate around the carbon sliding shoe rotating arm rotating shaft (B), and the initial vertical height of the carbon sliding shoe (C) from the end face (E) of the three-rail is H0; at the moment, the pointer tip of the vertical height pointer (5) is just overlapped with the zero scale mark at the topmost part of the elevation scale (2-2), and the distance difference L0 between the pointer tip and the zero scale mark is 0 mm; meanwhile, the zero scale mark of the compensation scale (6-3-1) is superposed with the upper end face of the measuring mechanism (6-1), and the distance difference D0 between the zero scale mark and the measuring mechanism is 0 mm;
step three: the hand wheel (3-3) is driven to rotate manually to drive the vertical lifting seat (4) to descend slowly through the rack transmission mechanism, and when the free state that the indication number of the indicating disc (6-5) is zero is kept and the compressed inner-contraction measuring rod (6-2) is just contacted with the upper end face of the carbon sliding shoe (C), the vertical lifting seat (4) stops descending and is kept still; at the moment, the elastic element is still in an uncompressed free state, the carbon sliding shoe rotating arm (A) does not rotate around the carbon sliding shoe rotating arm rotating shaft (B), and the initial vertical height of the carbon sliding shoe (C) from the end face (E) of the three-rail is still H0; recording the distance difference L between the pointer tip of the vertical height pointer (5) and the zero scale mark of the elevation scale (2-2)1And recording the pressure value index value N1 of the current indicator disc (6-5); in addition, the zero scale mark of the compensation scale (6-3-1) is still overlapped with the upper end surface of the measuring mechanism (6-1), so that the distance difference between the two is still D0-0 mm;
step four: further, the hand wheel (3-3) is driven to slowly descend through the rack transmission mechanism by rotating the driving hand wheel (3-3), and the carbon sliding shoe (C) is pressed by the compressed inward-contracting measuring rod (6-2) so as to drive the carbon sliding shoe rotating arm (A) to rotate to a low position around the carbon sliding shoe rotating arm rotating shaft (B); when the height value of the carbon sliding shoe (C) from the end face E of the third rail is just the acceptance standard height value H1, stopping the vertical lifting seat (4) from descending and keeping the vertical lifting seat still; thereafter, the vertical elevation pointer is recorded(5) The distance difference L between the tip of the pointer and the zero scale line of the elevation scale (2-2)2And recording the pressure value index value N2 of the current indicator disc (6-5); simultaneously, recording the distance difference D1 between the zero scale mark of the compensation scale (6-3-1) and the upper end face of the measuring mechanism (6-1);
step five: solving and recording a result of (H0-H1) + (D0-D1) … … (1) of (L2-L1), wherein the L is an actual height difference of vertical movement of the carbon sliding shoe (C) relative to the end face E of the third rail when the carbon sliding shoe (C) moves downwards from the H0 in the third step to the H1 in the fourth step after the error introduced by the displacement of the long-rod mechanism is eliminated;
step six: solving and recording the result of N-N2-N1 … … (2), and checking whether the N value result obtained by the formula (2) falls within the theoretical standard interval range of the static contact pressure value of [96, 144] Newton, if the N value falls within the standard interval range, judging that the static contact pressure value of the carbon slipper (C) which is measured and verified at present is qualified, and the carbon slipper (C) does not need to be adjusted; if the N value is less than 96 newtons, executing a seventh step; if the N value is larger than 144N, executing step eight;
step seven: calculating the difference value between the N value and 96 newtons as the loss amount of the minimum static pressure value of the carbon sliding shoe (C) caused by mechanical abrasion measured at present; if the loss amount of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the loss amount of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm A, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, increasing the spring pressure by axially moving the initial fastening position of the spring T in the spring slideway or thickening the spring base of the spring T, and enabling the static contact pressure value of the carbon sliding shoe (C) to be equal to the theoretical standard value of 120N again when the height value of the delta L from the third rail end face E in the step six is just the acceptance standard height value H1;
step eight; calculating the difference between the N value and 144 newtons as the increment of the maximum static pressure value of the carbon sliding shoe (C) caused by the loosening of the elastic component; if the increment of the static pressure value of the carbon sliding shoe is more than or equal to 5 newtons, a new carbon sliding shoe needs to be replaced; if the increment of the static pressure value of the carbon sliding shoe is less than 5 newtons, readjusting the initial slightly compressed state of the elastic part of the carbon sliding shoe rotating arm A, carrying out zero adjustment calibration on the initial pressure value of the elastic part in the range of 0 to 5 newtons, reducing the spring pressure by axially moving the initial fastening position of the spring T in the spring slideway or reducing the quantity of the spring base gaskets of the spring T, and enabling the static contact pressure value of the carbon sliding shoe (C) to be equal to the theoretical standard value of 120N again when the height value of the delta L from the third rail end face E in the step six is just the acceptance standard height value H1;
step nine: and re-executing the testing and verifying steps consistent with the step eight until the acceptance is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110900792.8A CN113484008A (en) | 2021-08-06 | 2021-08-06 | Measuring device for parameter calibration of carbon slipper of current collector and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110900792.8A CN113484008A (en) | 2021-08-06 | 2021-08-06 | Measuring device for parameter calibration of carbon slipper of current collector and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113484008A true CN113484008A (en) | 2021-10-08 |
Family
ID=77944581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110900792.8A Pending CN113484008A (en) | 2021-08-06 | 2021-08-06 | Measuring device for parameter calibration of carbon slipper of current collector and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113484008A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203798552U (en) * | 2014-04-16 | 2014-08-27 | 襄阳达安汽车检测中心 | Automobile side protection intensity detection testing bench |
| CN109470462A (en) * | 2018-11-13 | 2019-03-15 | 中车长春轨道客车股份有限公司 | Transverse and longitudinal load loading mechanism based on extraordinary simulation axle device |
| CN112629360A (en) * | 2020-12-25 | 2021-04-09 | 中车长春轨道客车股份有限公司 | Multipurpose railway passenger car manufacturing, assembling and detecting instrument |
| CN215448441U (en) * | 2021-08-06 | 2022-01-07 | 中车长春轨道客车股份有限公司 | Measuring device for parameter calibration of carbon sliding shoes of current collector |
-
2021
- 2021-08-06 CN CN202110900792.8A patent/CN113484008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203798552U (en) * | 2014-04-16 | 2014-08-27 | 襄阳达安汽车检测中心 | Automobile side protection intensity detection testing bench |
| CN109470462A (en) * | 2018-11-13 | 2019-03-15 | 中车长春轨道客车股份有限公司 | Transverse and longitudinal load loading mechanism based on extraordinary simulation axle device |
| CN112629360A (en) * | 2020-12-25 | 2021-04-09 | 中车长春轨道客车股份有限公司 | Multipurpose railway passenger car manufacturing, assembling and detecting instrument |
| CN215448441U (en) * | 2021-08-06 | 2022-01-07 | 中车长春轨道客车股份有限公司 | Measuring device for parameter calibration of carbon sliding shoes of current collector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102322779B (en) | Measuring device for angular contact ball bearing outer ring hold depth and measuring method thereof | |
| CN109323644B (en) | Shaft workpiece surface roundness detection tool and shaft workpiece roundness detection method | |
| CN110031352A (en) | Rockwell apparatus Standard Machine and hardness calibration method | |
| CN209355838U (en) | A kind of detection device for bearing end-play | |
| CN215448441U (en) | Measuring device for parameter calibration of carbon sliding shoes of current collector | |
| CN111638126A (en) | Experimental device for testing friction self-excited vibration of rubber material | |
| CN105021154A (en) | Steel ball measuring table | |
| CN215766926U (en) | Curved surface glass measuring device based on spectrum confocal | |
| CN113484008A (en) | Measuring device for parameter calibration of carbon slipper of current collector and using method thereof | |
| CN111156941B (en) | Vehicle brake block surface full run-out detection device | |
| CN210400872U (en) | Car suspension KC test swing mechanism that heels | |
| CN210198886U (en) | Rotary friction and wear tester | |
| CN215177403U (en) | Circle run-out length measuring instrument | |
| CN216621060U (en) | Automatic calibration device for linear displacement sensor | |
| CN111854671A (en) | Device and method for measuring straightness of axis inside thin-wall long cylinder | |
| CN205332942U (en) | Quick detection mechanism of gear shaft | |
| CN214121045U (en) | Tapered roller bearing flange and roller ball base surface simulation stress detection device | |
| CN210089611U (en) | Flatness out-of-tolerance continuous measuring device | |
| CN204831241U (en) | Be applied to detection arm subassembly that steel ball detected platform | |
| CN210514054U (en) | Rigidity friction coefficient measuring device | |
| CN204831260U (en) | Steel ball test position | |
| CN208155548U (en) | Waveform spring ancillary test tooling | |
| CN208171121U (en) | Hub bearing inner ring contact angle axial position detector | |
| CN220018421U (en) | Non-polished surface rapid measuring angle device | |
| CN110567625A (en) | Device and method for measuring maximum static friction force of parking wedge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |