CN102564264A - Method for scribing and measuring side frame - Google Patents
Method for scribing and measuring side frame Download PDFInfo
- Publication number
- CN102564264A CN102564264A CN2011104539116A CN201110453911A CN102564264A CN 102564264 A CN102564264 A CN 102564264A CN 2011104539116 A CN2011104539116 A CN 2011104539116A CN 201110453911 A CN201110453911 A CN 201110453911A CN 102564264 A CN102564264 A CN 102564264A
- Authority
- CN
- China
- Prior art keywords
- side frame
- supporting seat
- bogie side
- center
- line
- 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
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of vehicle measurement of railway locomotives and particularly relates to a method for scribing and measuring a side frame. The purpose of the method for scribing and measuring the side frame is to improve scribing efficiency and scribing precision of a central line. The method for scribing and measuring the side frame comprises the steps of: measuring a distance from a bearing surface of a load-bearing saddle of the side frame to a platform; measuring distances from centers of support bases of the side frame to the bearing surface of the load-bearing saddle; leading the center of a retaining ring to the support bases by wires; measuring the position of vertical central point A of the retaining ring; measuring distances from a guide frame to the support bases, a distance between the two support bases and distances from the support bases of the side frame to the central line of the side frame; and measuring included angles between the support bases and a longitudinal centre line of the side frame. According to the method for scribing and measuring the side frame, disclosed by the invention, the scribing efficiency and scribing precision of the central line are improved, and the scribing precision difference caused by different scribing engineering levels of skilled workers is eliminated.
Description
Technical field
The invention belongs to the rail vehicles technical field of measuring, be specifically related to the method that a kind of bogie side frame line is measured.
Background technology
Along with the speed-raising of railway freight-car, roller bearing adapter stabilizer bar is extensively employed new technology, to adapt to the requirement of new situations; At present, railway freight-car has more than 50 ten thousand to use the cross-braced device bogie, and more than 200 ten thousand cross-braced device bogie side frames are using.Stipulate in the technical conditions of cross-braced device bogie that every day, initial workpiece bogie side frame composition must carry out the pincers worker scribing inspection, and is in good condition to guarantee bogie side frame, meets the requirements, and guarantees the safe, reliable of railway freight-car.
Fig. 1 is seen in the technical requirement of bogie side frame line.
1, the distance H of supporting seat (retaining ring) center to bogie side frame adapter supporting surface;
2, distance L 1, the L2 of supporting seat center to bogie side frame longitudinal center;
3, supporting seat center to bogie side frame transverse center apart from a;
4, the angle β of supporting seat and bogie side frame longitudinal centre line.
Existing scheme:
(1) with bogie side frame by working position (Fig. 1 top figure position) be placed on square chest, pincers worker top on, form through the top bogie side frame of adjusting of adjustment pincers worker, make bogie side frame adapter carrying plane parallel with platform, side frame guide is vertical with platform.Measure the distance of bogie side frame adapter carrying plane and platform.
(2) in retaining ring, fill in wooden unit or lead, use and to plan or compasses, ruler are found out the center of retaining ring circular hole, use scribing block, ruler or vernier height gauge, measure the distance of retaining ring center to platform.Can know through calculating, the supporting seat center to the distance of distance-retaining ring center to the platform of the distance=bogie side frame adapter carrying plane of bogie side frame adapter carrying plane and platform.
(3) measure the distance at two supporting seat centers through the retaining ring circular hole.
(4) with bogie side frame level (Fig. 1 below figure position) be placed on three pincers worker top on, through the top height of adjustment pincers worker, make bogie side frame adapter carrying plane vertical with platform, side frame guide is vertical with platform.
(5) pass through retaining ring up and down, find out the transverse center point of supporting seat; Measure the distance of supporting seat central point and platform.
(6) find out the longitudinal centre line of bogie side frame through the drawing strickle guide two sides, measure the distance of bogie side frame longitudinal centre line and platform.Can know the distance of the distance of the distance of supporting seat center and bogie side frame longitudinal centre line=supporting seat central point and platform-bogie side frame longitudinal centre line and platform through calculating.
(7) distance at measurement side frame guide to supporting seat center.
(8) use angle chi and try square are measured the angle of supporting seat (retaining ring) and bogie side frame longitudinal center.
Because the supporting seat malposition (not in level or upright position) of bogie side frame, prior art is top to guarantee bogie side frame and platform keeping parallelism, vertical process in the adjustment pincers worker, measures the center of retaining ring annulus; Measure the center of same supporting seat two retaining rings, measure the distance of side frame guide to retaining ring, in the process of measurement angle β etc.; Complicated operation, it is difficult to choose the measuring position, and the location is inaccurate; Occur deviation easily, precision is not high and expend time in longer.The shortcoming of prior art: (1) line precision is low; (2) length consuming time, work efficiency is lower; (3) workman's technical merit influence degree of being rule is big.
Summary of the invention
Goal of the invention of the present invention:
1, improve center line line efficient,
2, improve center line line precision,
3, the center line line precision that causes because of the difference of ruling level of technical solution workman.
The present invention adopts following technical scheme to realize:
1, a kind of method of bogie side frame line measurement is characterized in that step is following:
1), measure the distance H 1 of bogie side frame adapter carrying plane to platform,
Make two bearings, upper and lower two plane parallel of bearing, upper and lower plane and lateral vertical, the height of two bearings is identical, and bogie side frame vertically is placed on the bearing, and the height of bearing is the vertical range H1 of bogie side frame adapter carrying plane and platform at this moment;
2), measure the distance H of bogie side frame supporting seat center to adapter carrying plane,
Make the center line locating piece; The center line locating piece comprises that diameter is the cylindrical block of d, and the cylindrical block top is provided with the circular platform that diameter is d+4, and circular platform and cylindrical block are concentric; The center of circle of crossing circular platform has straight trough; The circle centre position of corresponding circular platform is provided with the locating piece central point in the straight trough, and d is of a size of serial size, and the tapering of 1:10 is arranged;
The cylindrical block of center line locating piece partly is placed in the retaining ring of bogie side frame, and both are closely connected, and the direction of straight trough is vertical; At this moment, the center of locating piece is exactly the center of supporting seat, measures the distance H 2 of supporting seat center to platform, and H=H1-H2 calculates the distance H of bogie side frame supporting seat center to adapter carrying plane;
3), with the retaining ring central tap to supporting seat,
Make the quarter bend chi; Two right-angle side thickness of quarter bend chi are identical; With the closely connected platform in quarter bend chi one side; The straight trough bottom and the retaining ring of the closely connected center line locating piece in another side, limit and centralized positioning sign are closely connected, are on the vertical plane of retaining ring central tap to supporting seat with scriber with the centralized positioning sign;
4), measure the vertical center A point position of retaining ring,
The bogie side frame horizontal positioned, three top bearing spring platform bottom, delthyrium outsides of supporting bogie side frame respectively of pincers worker line, two-part difference in height is approximately H '; The top base diameter of pincers worker line is D; Make two cylindrical parallels, highly for H ', diameter are D ', D '=D+20mm; Fine setting pincers worker pitch of centers makes bogie side frame parallel with platform;
Use the quarter bend chi, couple together at the center line of supporting seat lower plane with the retaining ring both sides, this line is the cross central line of supporting seat;
Make the center line marking-out rule; The center line marking-out rule comprises support; The vertical hinged measurement cylinder in support two ends, carriage center position are provided with and measure cylinder stroke point in the same way, rule; Two measure the cylinder inboard abuts against parallel sliding on the retaining ring, draws point marks two retaining rings on supporting seat longitudinal centre line;
The point of crossing of longitudinal centre line and cross central line is the vertical central point A of supporting seat;
5), measure the distance of drawing strickle guide to supporting seat, the distance of two supporting seats;
Bearing end face and bogie side frame adapter supporting surface is closely connected, and bearing side and side frame guide are closely connected, and the distance at bearing side to supporting seat center is distance L 3, the L4 at side frame guide to supporting seat center, measure the distance L 5 of two bracing or strutting arrangements;
6), distance L 1, the L2 of bogie side frame supporting seat to bogie side frame center line,
The distance L 1=L5/2+ (L4-L3)/2 of bogie side frame supporting seat to bogie side frame center line, L2=L5/2+ (L3-L4)/2;
7), measure bogie side frame center line to supporting seat apart from a,
Two sides with bogie side frame are benchmark, find out the longitudinal centre line of bogie side frame, measure the height a1 of longitudinal centre line to platform; Measure supporting seat center to platform apart from a2, bogie side frame center line to supporting seat apart from a=a1-a2;
(8) the angle β of measurement supporting seat and bogie side frame longitudinal centre line,
Below supporting seat, place parallels, the parallels top and bottom are parallel, and height is 10～30mm apart from the retaining ring lower end.Use that both sides are parallel, width is the subsidiary plate of 100mm; One side and retaining ring are closely connected; Opposite side stretches out, and the basic chi of universal protractor is abutted on the parallels detent of rotation universal protractor; Make the vernier and the subsidiary plate of universal protractor, the angle that this moment, universal protractor showed is the angle β of supporting seat and bogie side frame longitudinal centre line.
Beneficial effect of the present invention:
1, improves center line line efficient.
2, improve center line line precision.
3, the line precision that causes because of the difference of ruling level of technical solution workman.
Description of drawings
Fig. 1 is the bogie side frame structural representation,
Fig. 2 is the vertical view of Fig. 1,
Fig. 3 is the partial enlarged drawing of Fig. 1,
Fig. 4 is the bearing synoptic diagram,
Fig. 5 is the side view of Fig. 4,
Fig. 6 is a bogie side frame working position instrumentation plan,
Fig. 7 centralized positioning piece synoptic diagram,
Fig. 8 is the side view of Fig. 7,
Fig. 9 is the synoptic diagram of quarter bend chi,
Figure 10 is the side view of Fig. 9,
Figure 11 is the parallels synoptic diagram,
Figure 12 is a bogie side frame horizontal level instrumentation plan,
Figure 13 is the vertical view of Figure 12,
Figure 14 is the synoptic diagram of center line marking-out rule,
Figure 15 is measurement supporting base center line synoptic diagram,
Figure 16 is for measuring bogie side frame supporting base angle β synoptic diagram
Among the figure: 1 bogie side frame, 2 supporting seats, 3 retaining rings, 4-bearing, 5-platform; 6-centralized positioning piece, 7-quarter bend chi, the 8-parallels, 9-pincers worker line is top, 10-center line marking-out rule; 11-measures cylinder, 12-support, the sliding point of 13-, 14-universal protractor, 15-subsidiary plate.
Embodiment
(1) distance H 1 of measurement bogie side frame adapter carrying plane to platform.
Two have been made like Fig. 4, the bearing shown in 5.Two heights of support are identical, two plane parallel up and down, last lower plane and lateral vertical.Bogie side frame working position (the vertical placement) is placed on the bearing, as shown in Figure 6.The height of bearing is the vertical range H1 of bogie side frame adapter carrying plane and platform at this moment.
(2) distance H of measurement bogie side frame supporting seat center to adapter carrying plane.
Made like Fig. 7, center line locating piece shown in Figure 8.Because the endoporus of retaining ring is of a size of Φ d ± 0.5mm, on the make during heart line locating piece, in order to guarantee closely connected with retaining ring, d is of a size of serial size, and the tapering of 1:10 is arranged.At the locating piece central point of making on the center line locating piece about Φ 0.2mm, the centre mills out the groove about 15mm, and quarter bend chi and retaining ring are closely connected when being convenient to rule, and reduces the line error.The center line locating piece is placed in the retaining ring, and both are closely connected, and groove is a vertical direction; At this moment, the center of locating piece is exactly the center of supporting seat.Use vernier height gauge to measure the distance H 2 of supporting seat center to platform.Through calculating the distance H of bogie side frame supporting seat center to adapter carrying plane, H=H1-H2.
(3) with the retaining ring central tap to supporting seat.
Made like Fig. 9, special-purpose quarter bend chi that two right-angle side thickness shown in 10 are identical.With the closely connected platform in special-purpose quarter bend chi one side, the groove and the retaining ring of the closely connected center line locating piece in another side, limit and centralized positioning sign are closely connected, are on the vertical plane of retaining ring central tap to supporting seat with scriber with the centralized positioning sign.
(4) the vertical center A point position of measurement retaining ring.
Made special-purpose parallels shown in figure 11.Bogie side frame is when horizontal positioned, and bearing spring platform bottom, the delthyrium outside of bogie side frame supported in three pincers worker line top (base diameter is D) respectively, and two-part difference in height is approximately H ' mm.Made 2 height and be H ', diameter and be D ' (D '=D+20) parallels, when the bogie side frame horizontal positioned, 2 parallels pads are below the pincers worker line is top; Guaranteed that so basically bogie side frame is parallel with the pincers worker platform,, made bogie side frame parallel very soon, seen Figure 12,13 with platform through fine setting pincers worker pitch of centers.
Use special-purpose quarter bend chi, couple together at the center line of supporting seat lower plane with the retaining ring both sides, this line is the cross central line of supporting seat.
Made like Figure 14, the center line marking-out rule shown in 15.Because the thickness deviation between two workplaces of supporting seat is ± 0.5mm that retaining ring thickness also has tolerance; Simultaneously; Reasons such as certain inclination, injustice possibly appear in the supporting seat workplace, and retaining ring and supporting seat assembly welding are gapped are behind supporting seat and the retaining ring assembly welding; The variation range of the distance of two retaining rings is more than 1mm, and the center line of finding out two retaining rings to line like this causes certain difficulty.For this reason, made like Figure 14, the center line marking-out rule shown in 15.During line, two measure the cylinder inboard abuts against parallel sliding on the retaining ring, draws point marks two retaining rings quickly on supporting seat longitudinal centre line.Use this specific purpose tool, can fast, accurately mark the longitudinal centre line of two retaining rings, can be because of the distance of two retaining rings is not different, it is incorrect position of center line to occur.
The point of crossing of longitudinal centre line and cross central line is the vertical central point A of supporting seat.
(5) measure the distance of drawing strickle guide to supporting seat, the distance of two supporting seats.
Special carrier end face and bogie side frame adapter supporting surface is closely connected, and bearing side and side frame guide are closely connected, see Figure 12; At this moment, the distance at bearing side to supporting seat center is distance L 3, the L4 at side frame guide to supporting seat center.
Measure the distance (L5) of two bracing or strutting arrangements.
(6) distance of bogie side frame supporting seat to bogie side frame center line
Can know the distance L 1=L5/2+ (L4-L3)/2 of bogie side frame supporting seat to bogie side frame center line, L2=L5/2+ (L3-L4)/2 through calculating
(7) measure bogie side frame center line to supporting seat apart from a.
Two sides with bogie side frame are benchmark, find out the longitudinal centre line of bogie side frame, measure the height a1 of longitudinal centre line to platform; Measure supporting seat center to platform apart from a2.Measure bogie side frame center line to supporting seat apart from a=a1-a2.
(8) the angle β of measurement supporting seat and bogie side frame longitudinal centre line
Below supporting seat, place parallels, the parallels top and bottom are parallel, and height is 10～30mm apart from the retaining ring lower end.Use one both sides be parallel, flatness is little, the subsidiary plate of width about as 100mm, a side and retaining ring are closely connected, opposite side stretches out.The basic chi of universal protractor is abutted on the parallels, rotate the detent of universal protractor, make the vernier and the subsidiary plate of universal protractor, the angle β that the angle that this moment, universal protractor showed is supporting seat and bogie side frame longitudinal centre line sees Figure 16.
Claims (1)
1. the method measured of bogie side frame line is characterized in that step is following:
1), measure the distance H 1 of bogie side frame adapter carrying plane to platform,
Make two bearings, upper and lower two plane parallel of bearing, upper and lower plane and lateral vertical, the height of two bearings is identical, and bogie side frame vertically is placed on the bearing, and the height of bearing is the vertical range H1 of bogie side frame adapter carrying plane and platform at this moment;
2), measure the distance H of bogie side frame supporting seat center to adapter carrying plane,
Make the center line locating piece; The center line locating piece comprises that diameter is the cylindrical block of d, and the cylindrical block top is provided with the circular platform that diameter is d+4, and circular platform and cylindrical block are concentric; The center of circle of crossing circular platform has straight trough; The circle centre position of corresponding circular platform is provided with the locating piece central point in the straight trough, and d is of a size of serial size, and the tapering of 1:10 is arranged;
The cylindrical block of center line locating piece partly is placed in the retaining ring of bogie side frame, and both are closely connected, and the direction of straight trough is vertical; At this moment, the center of locating piece is exactly the center of supporting seat, measures the distance H 2 of supporting seat center to platform, and H=H1-H2 calculates the distance H of bogie side frame supporting seat center to adapter carrying plane;
3), with the retaining ring central tap to supporting seat,
Make the quarter bend chi; Two right-angle side thickness of quarter bend chi are identical; With the closely connected platform in quarter bend chi one side; The straight trough bottom and the retaining ring of the closely connected center line locating piece in another side, limit and centralized positioning sign are closely connected, are on the vertical plane of retaining ring central tap to supporting seat with scriber with the centralized positioning sign;
4), measure the vertical center A point position of retaining ring,
The bogie side frame horizontal positioned, three top bearing spring platform bottom, delthyrium outsides of supporting bogie side frame respectively of pincers worker line, two-part difference in height is approximately H '; The top base diameter of pincers worker line is D; Make two cylindrical parallels, highly for H ', diameter are D ', D '=D+20mm; Fine setting pincers worker pitch of centers makes bogie side frame parallel with platform;
Use the quarter bend chi, couple together at the center line of supporting seat lower plane with the retaining ring both sides, this line is the cross central line of supporting seat;
Make the center line marking-out rule; The center line marking-out rule comprises support; The vertical hinged measurement cylinder in support two ends, carriage center position are provided with and measure cylinder stroke point in the same way, rule; Two measure the cylinder inboard abuts against parallel sliding on the retaining ring, draws point marks two retaining rings on supporting seat longitudinal centre line;
The point of crossing of longitudinal centre line and cross central line is the vertical central point A of supporting seat;
5), measure the distance of drawing strickle guide to supporting seat, the distance of two supporting seats;
Bearing end face and bogie side frame adapter supporting surface is closely connected, and bearing side and side frame guide are closely connected, and the distance at bearing side to supporting seat center is distance L 3, the L4 at side frame guide to supporting seat center, measure the distance L 5 of two bracing or strutting arrangements;
6), distance L 1, the L2 of bogie side frame supporting seat to bogie side frame center line,
The distance L 1=L5/2+ (L4-L3)/2 of bogie side frame supporting seat to bogie side frame center line, L2=L5/2+ (L3-L4)/2;
7), measure bogie side frame center line to supporting seat apart from a,
Two sides with bogie side frame are benchmark, find out the longitudinal centre line of bogie side frame, measure the height a1 of longitudinal centre line to platform; Measure supporting seat center to platform apart from a2, bogie side frame center line to supporting seat apart from a=a1-a2;
(8) the angle β of measurement supporting seat and bogie side frame longitudinal centre line,
Below supporting seat, place parallels, the parallels top and bottom are parallel, and height is 10～30mm apart from the retaining ring lower end; Use that both sides are parallel, width is the subsidiary plate of 100mm, a side and retaining ring are closely connected, opposite side stretches out; The basic chi of universal protractor is abutted on the parallels; Rotate the detent of universal protractor, make the vernier and the subsidiary plate of universal protractor, the angle that this moment, universal protractor showed is the angle β of supporting seat and bogie side frame longitudinal centre line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104539116A CN102564264A (en) | 2011-12-30 | 2011-12-30 | Method for scribing and measuring side frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104539116A CN102564264A (en) | 2011-12-30 | 2011-12-30 | Method for scribing and measuring side frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102564264A true CN102564264A (en) | 2012-07-11 |
Family
ID=46410352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104539116A Pending CN102564264A (en) | 2011-12-30 | 2011-12-30 | Method for scribing and measuring side frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564264A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651150A (en) * | 2015-12-28 | 2016-06-08 | 齐齐哈尔轨道交通装备有限责任公司 | Measurer |
| CN106247899A (en) * | 2016-08-31 | 2016-12-21 | 中车长春轨道客车股份有限公司 | The device for fast detecting of leaf spring knee level alternate position spike and using method thereof |
| CN109737857A (en) * | 2018-11-28 | 2019-05-10 | 中车太原机车车辆有限公司 | A kind of brake beam measurement method |
| CN110986722A (en) * | 2019-12-25 | 2020-04-10 | 资阳中车电力机车有限公司 | Adjustment-free method for secondary transverse stopping gap |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095003A (en) * | 1976-09-09 | 1978-06-13 | Union Carbide Corporation | Duplex coating for thermal and corrosion protection |
| CN201348473Y (en) * | 2008-12-31 | 2009-11-18 | 南车二七车辆有限公司 | Measuring ruler for measuring distance between side frame bearing platform and supporting seat mounting surface of railway freight car |
| US20110113640A1 (en) * | 2009-11-15 | 2011-05-19 | Lou Molina | Chassis Gauge |
-
2011
- 2011-12-30 CN CN2011104539116A patent/CN102564264A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095003A (en) * | 1976-09-09 | 1978-06-13 | Union Carbide Corporation | Duplex coating for thermal and corrosion protection |
| CN201348473Y (en) * | 2008-12-31 | 2009-11-18 | 南车二七车辆有限公司 | Measuring ruler for measuring distance between side frame bearing platform and supporting seat mounting surface of railway freight car |
| US20110113640A1 (en) * | 2009-11-15 | 2011-05-19 | Lou Molina | Chassis Gauge |
Non-Patent Citations (2)
| Title |
|---|
| 兰明生等: "转K2型转向架侧架组成划线工艺开发", 《机车车辆工艺》 * |
| 冯文梅: "货车转向架结构设计改进及造修工艺优化", 《万方学位论文数据库》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651150A (en) * | 2015-12-28 | 2016-06-08 | 齐齐哈尔轨道交通装备有限责任公司 | Measurer |
| CN105651150B (en) * | 2015-12-28 | 2018-05-25 | 中车齐齐哈尔车辆有限公司 | Measuring appliance |
| CN106247899A (en) * | 2016-08-31 | 2016-12-21 | 中车长春轨道客车股份有限公司 | The device for fast detecting of leaf spring knee level alternate position spike and using method thereof |
| CN106247899B (en) * | 2016-08-31 | 2018-12-14 | 中车长春轨道客车股份有限公司 | The device for fast detecting and its application method of leaf spring knee level alternate position spike |
| CN109737857A (en) * | 2018-11-28 | 2019-05-10 | 中车太原机车车辆有限公司 | A kind of brake beam measurement method |
| CN110986722A (en) * | 2019-12-25 | 2020-04-10 | 资阳中车电力机车有限公司 | Adjustment-free method for secondary transverse stopping gap |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104180741B (en) | A kind of Multifunctional check tool | |
| CN201964854U (en) | Special measuring tool for clamp spring slot of internal and external spherical cage external starwheels | |
| CN102564264A (en) | Method for scribing and measuring side frame | |
| CN109900181B (en) | Arc alignment method for sector section inner arc frame | |
| CN102012211B (en) | Three pairs of sliding pair-spherical hinge-spherical hinge (3-PSS) mechanism-based coordinate measuring machine | |
| CN102865799B (en) | Train track plane parallelism measuring device | |
| CN214747655U (en) | Measuring scale for width and dislocation value of rail web of steel rail | |
| CN204613042U (en) | Scraper plate bending test combined measuring device | |
| CN201828222U (en) | Abrasion detector for frog wing rail | |
| CN105928441A (en) | Three-in-one measuring tool for bent chain plate | |
| CN202719940U (en) | Roller surface elevation measurement apparatus | |
| CN204154202U (en) | A kind of Multifunctional check tool | |
| CN201803690U (en) | Frog point rail abrasion detector | |
| CN210194359U (en) | Tram trough steel rail measuring ruler | |
| CN102535275B (en) | Calibrating device for standard frame of rail plate | |
| CN211527308U (en) | Improved flatness measuring device | |
| CN201407984Y (en) | Movable column type profile meter | |
| CN105021114A (en) | Guide rail parallelism degree simple detecting tool | |
| KR102708328B1 (en) | table | |
| CN201575808U (en) | Sleeper slope distortion measuring device | |
| CN202452976U (en) | Precise substrate capable of rapidly adjusting position | |
| CN102501241B (en) | Marking-off table for instrumented wheel sets and using method for the same | |
| CN211541191U (en) | Marking device | |
| CN205201451U (en) | Work piece assembly or fitting table | |
| CN203964797U (en) | A kind of micron micrometer measurer for large-scale precision equipment centering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |