CN114368398A - Left-right reverse thread adjusting steel rail center detection split trolley - Google Patents
Left-right reverse thread adjusting steel rail center detection split trolley Download PDFInfo
- Publication number
- CN114368398A CN114368398A CN202210007513.XA CN202210007513A CN114368398A CN 114368398 A CN114368398 A CN 114368398A CN 202210007513 A CN202210007513 A CN 202210007513A CN 114368398 A CN114368398 A CN 114368398A
- Authority
- CN
- China
- Prior art keywords
- threaded rod
- steel rail
- screw
- bearing
- rod
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
Abstract
The invention discloses a split trolley for adjusting the center of a steel rail by left and right reverse threads, belonging to the technical field of rail detection vehicles, and comprising: the rectangular base plate is movably connected with four first needle roller bearings at equal intervals, and sliding grooves are symmetrically formed in two sides of the top end of the base plate; the two screw rod seats are respectively installed at the tops of the sliding grooves, the screw rod seats are connected with a threaded rod in a penetrating mode, the threaded rod can rotate in a penetrating portion of the screw rod seats, threads on the threaded rod on two sides of each screw rod seat are arranged in a reverse mode, and the direction of the sliding grooves is the same as that of the threaded rod; two sliders run through respectively set up in on the threaded rod of screw rod seat both sides, the threaded rod with the portion of running through of slider passes through screw-thread fit. This control reverse screw thread regulation rail center detects components of a whole that can function independently dolly can drive the bearing synchronous motion of both sides through rotatory threaded rod, makes the vertical center of prism and the center coincidence of rail.
Description
Technical Field
The invention relates to the technical field of track detection vehicles, in particular to a split trolley for detecting the center of a steel rail by adjusting left and right reverse threads.
Background
The rail inspection vehicle is used for detecting the geometric state and the irregularity condition of a rail so as to evaluate special vehicles with the geometric state of the rail, and is called the rail inspection vehicle for short. It is an important tool for ensuring safe, stable and comfortable driving and maintaining the guide rail.
According to the record of the rail inspection vehicle, the place with poor smooth state of the rail can be found, so that emergency repair or speed limit measures can be taken, the mileage paragraph to be subjected to planned maintenance is determined, and a maintenance operation plan is compiled.
However, the existing track inspection vehicle often cannot install the vehicle body on the steel rail well, and after the installation, the position of the track inspection vehicle often needs to be carefully adjusted to finish the detection work, so that the detection process is complex and troublesome.
Disclosure of Invention
The invention mainly aims to provide a split trolley for detecting the center of a steel rail by adjusting left and right reverse threads, and aims to solve the technical problems that the existing rail inspection trolley cannot well install a trolley body on the steel rail, the position of the rail inspection trolley is required to be carefully adjusted after the existing rail inspection trolley is installed, the detection work can be completed, and the detection process is complicated and troublesome.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
control reverse screw and adjust rail center detection components of a whole that can function independently dolly, it includes:
the rectangular base plate is movably connected with four first needle roller bearings at equal intervals, and sliding grooves are symmetrically formed in two sides of the top end of the base plate;
the two screw rod seats are respectively installed at the tops of the sliding grooves, the screw rod is connected with the screw rod in a penetrating mode, the screw rod can rotate in a penetrating portion of the screw rod seat, threads on the screw rod on two sides of the screw rod seat are arranged in a reverse mode, and the direction of the sliding grooves is the same as that of the screw rod;
the two sliding blocks are respectively arranged on the threaded rods on the two sides of the screw rod seat in a penetrating mode, the threaded rods are in threaded fit with the penetrating portions of the sliding blocks, the sliding blocks are movably connected inside the sliding grooves, the end portions of the threaded rods are provided with polished rods, the polished rods are perpendicular to the threaded rods, the bottom ends of the two sliding blocks are provided with bearing installation seats along the symmetrical direction, one side of the top end of each bearing installation seat is attached to the bottom end of the bottom plate, and the bottom end of each bearing installation seat is movably connected with a second needle bearing.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the top end of the bottom plate is provided with a prism, and the center of the prism is coincided with the center of the bottom plate.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the first needle bearing and the second needle bearing are perpendicular to each other, and the first needle bearing is perpendicular to the top surface of the steel rail.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: and a handle is arranged on one side of the top end of the bottom plate, and an anti-slip sleeve is arranged on the handle.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the inside swing joint of screw rod seat has the screw rod sleeve, the screw rod muffjoint has the one end of threaded rod.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the top of polished rod is provided with spacing head end, the split pin is installed to the bottom of polished rod.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the first needle bearing and the second needle bearing are both of an insulating structure, and are polyurethane rubber-coated bearings.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the slider and the bearing installation seat are respectively located above and below the bottom plate, and the slider and the bearing installation seat can not move up and down through the sliding grooves.
As the preferred scheme of the split trolley for detecting the center of the steel rail by adjusting the left and right reverse threads, the invention comprises the following steps: the polished rods are two and are respectively arranged at two ends of the threaded rod.
The invention has the following beneficial effects: when in work, the four first needle roller bearings directly walk on the steel rail, the four second needle roller bearings walk on the side surface of the steel rail, before working, the polish rods on two sides are pulled to drive the threaded rods to rotate, the threaded rods rotate on the screw rod seats, the threaded rod is rotated on the sliding block, the sliding block is limited by the sliding groove and can only move linearly, the threaded rod enables the left sliding block and the right sliding block to be simultaneously opened, the two sliding blocks drive the bearing mounting seat to move, the bearing mounting seat drives the second needle bearing to move, then the detection vehicle is placed on the steel rail, at the moment, the threaded rod is rotated to enable the left and right sliding blocks to be tensioned, the second needle roller bearings are attached to two sides of the steel rail, the threaded rod can drive the sliding blocks to apply a pair of forces with opposite directions and equal magnitude when rotating, thereby driving the left and right second needle bearings to be capable of stretching and retracting simultaneously, and enabling the vertical center of the prism to be coincided with the center of the steel rail all the time;
this control reverse screw thread regulation rail center detects components of a whole that can function independently dolly can drive the bearing synchronous motion of both sides through the rotatory threaded rod, makes the vertical center of prism and the center coincidence of rail.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an isometric view of the present invention without the handle;
FIG. 2 is a side view of the present invention;
FIG. 3 is an isometric view of a movable member of the present invention;
FIG. 4 is an isometric view of a base plate of the present invention;
fig. 5 is a front view of the movable member of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | First needle bearing |
| 120 | |
130 | Prism |
| 140 | |
150 | |
| 200 | |
210 | Threaded |
| 211 | |
220 | |
| 230 | |
231 | |
| 240 | |
250 | Second needle bearing |
The implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a split trolley for adjusting the center of a steel rail through left and right reverse threads, which can drive bearings on two sides to move synchronously by rotating a threaded rod 210, so that the vertical center of a prism 130 is superposed with the center of the steel rail;
referring to figures 1-5 of the drawings,
the needle roller bearing assembly comprises a base plate 100, four first needle roller bearings 110 are rotatably connected in an equidistant rectangular manner, and sliding grooves 120 are symmetrically formed in two sides of the top end of the base plate 100;
the two screw seats 200 are respectively connected to the top of the sliding groove 120 through bolts, the screw seats 200 are connected with threaded rods 210 in a penetrating manner, the threaded rods 210 can rotate in penetrating portions of the screw seats 200, threads on the threaded rods 210 on two sides of the screw seats 200 are arranged in a reverse direction, and the direction of the sliding groove 120 is the same as that of the threaded rods 210;
two sliding blocks 220 respectively penetrating the threaded rods 210 arranged at two sides of the screw seat 200, the threaded rods 210 and the penetrating parts of the sliding blocks 220 are in threaded fit, the sliding blocks 220 are slidably connected inside the sliding grooves 120, the end parts of the threaded rods 210 are embedded and connected with polished rods 230, the polished rods 230 and the threaded rods 210 are perpendicular to each other, the bottom ends of the two sliding blocks 220 are connected with bearing installation seats 240 along the symmetrical direction through bolts, one side of the top end of each bearing installation seat 240 is attached to the bottom end of the bottom plate 100, and the bottom ends of the bearing installation seats 240 are rotatably connected with second needle bearings 250;
the base plate 100 is used for mounting other devices above, the first needle bearing 110 is used for enabling the base plate 100 to slide along a steel rail, the sliding groove 120 is used for providing a channel for the sliding block 220 to slide, the screw rod seat 200 is used for connecting the threaded rod 210, the threaded rod 210 is used for rotating along the screw rod seat 200 and driving the sliding block 220 to slide, the sliding block 220 is used for limiting the sliding block 220 which can only horizontally move to move along the sliding groove 120 when the threaded rod 210 rotates on the sliding block 220, the smooth rod 230 is used for driving the threaded rod 210 to rotate, the bearing mounting seat 240 is used for mounting the second needle bearing 250 and slides along with the sliding block 220, and the second needle bearing 250 is used for limiting the rail car to move on the steel rail;
when the detection vehicle is used specifically, during work, the four first needle roller bearings 110 directly walk on a steel rail, the four second needle roller bearings 250 walk on the side surface of the steel rail, before work is carried out, the polished rods 230 on two sides are pulled, the polished rods 230 drive the threaded rods 210 to rotate, the threaded rods 210 rotate on the screw rod seats 200 and enable the threaded rods 210 to rotate on the sliding blocks 220, as the sliding blocks 220 are limited by the sliding grooves 120 and can only move linearly, the threaded rods 210 enable the left and right sliding blocks 220 to be opened simultaneously, the two sliding blocks 220 drive the bearing mounting seats 240 to move, the bearing mounting seats 240 drive the second needle roller bearings 250 to move, then the detection vehicle is placed on the steel rail, at the moment, the threaded rods 210 are rotated to enable the left and right sliding blocks 220 to be tensioned, the second needle roller bearings 250 are attached to two sides of the steel rail, the threaded rods 210 can drive the sliding blocks 220 to apply a pair of forces with opposite directions and equal magnitude when rotating, so as to drive the left and right second needle roller bearings 250 to simultaneously stretch, the vertical center of the prism 130 is always coincident with the center of the rail.
Referring to fig. 1 to 5 again, a prism 130 is screwed on the top of the base plate 100, and the center of the prism 130 coincides with the center of the base plate 100.
Referring again to fig. 1-5, the first needle bearing 110 and the second needle bearing 250 are perpendicular to each other, and the first needle bearing 110 is perpendicular to the top surface of the rail.
Referring to fig. 1 to 5 again, a handle 140 is connected to one side of the top end of the bottom plate 100 through a bolt, and an anti-slip cover 150 is sleeved on the handle 140.
Referring again to fig. 1 to 5, a screw sleeve 211 is rotatably connected to the inside of the screw base 200, the screw sleeve 211 is threadedly connected to one end of the threaded rod 210, and the screw sleeve 211 is used to enable the threaded rod 210 to rotate on the screw base 200.
Referring to fig. 1-5 again, the top end of the polish rod 230 is provided with a limit head end, the bottom end of the polish rod 230 is embedded and connected with a cotter pin 231, and the limit head end and the cotter pin 231 are used for preventing the polish rod 230 from being separated from the threaded rod 210.
Referring again to fig. 1-5, the first needle bearing 110 and the second needle bearing 250 are both insulating structures, and the first needle bearing 110 and the second needle bearing 250 are polyurethane encapsulated bearings.
Referring to fig. 1 to 5 again, the sliding block 220 and the bearing mount 240 are respectively located above and below the bottom plate 100, and neither the sliding block 220 nor the bearing mount 240 can move up and down through the sliding slot 120.
Referring to fig. 1 to 5 again, the polish rod 230 has two ends, and is inserted into and connected to the two ends of the threaded rod 210.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. Control reverse screw and adjust rail center detection components of a whole that can function independently dolly, its characterized in that includes:
the needle roller bearing device comprises a base plate (100), four first needle roller bearings (110) are movably connected in an equidistant rectangular mode, and sliding grooves (120) are symmetrically formed in two sides of the top end of the base plate (100);
the two screw rod seats (200) are respectively installed at the tops of the sliding grooves (120), the screw rod seats (200) are connected with a threaded rod (210) in a penetrating mode, the threaded rod (210) can rotate in a penetrating portion of the screw rod seats (200), threads on the threaded rods (210) on two sides of the screw rod seats (200) are arranged in a reverse mode, and the direction of the sliding grooves (120) is the same as that of the threaded rods (210);
two sliders (220), run through respectively set up in on the threaded rod (210) of screw rod seat (200) both sides, threaded rod (210) with the portion of running through of slider (220) passes through screw-thread fit, slider (220) swing joint is inside spout (120), polished rod (230) are installed to the tip of threaded rod (210), and polished rod (230) and threaded rod (210) mutually perpendicular, two bearing mount pad (240) are installed along the symmetry direction to the bottom of slider (220), the laminating of top one side of bearing mount pad (240) is in bottom plate (100) bottom, the bottom swing joint of bearing mount pad (240) has second bearing (250).
2. The left-right reverse-thread adjusting steel rail center detection split trolley as claimed in claim 1, wherein a prism (130) is mounted at the top end of the base plate (100), and the center of the prism (130) is coincident with the center of the base plate (100).
3. The left-right reverse-thread adjusting steel rail center detection split trolley according to claim 1, wherein the first needle bearing (110) and the second needle bearing (250) are perpendicular to each other, and the first needle bearing (110) is perpendicular to the top surface of the steel rail.
4. The split trolley for detecting the center of the steel rail through adjusting the left and right reverse threads as claimed in claim 1, wherein a handle (140) is installed on one side of the top end of the bottom plate (100), and an anti-skid sleeve (150) is installed on the handle (140).
5. The left-right reverse-thread adjusting steel rail center detection split trolley according to claim 1, wherein a screw sleeve (211) is movably connected to the inside of the screw seat (200), and the screw sleeve (211) is connected with a threaded rod (210).
6. The left-right reverse-thread adjusting steel rail center detection split trolley according to claim 1, wherein a limiting head end is arranged at the top end of the polish rod (230), and a cotter pin (231) is installed at the bottom end of the polish rod (230).
7. The left-right reverse-thread adjusting steel rail center detection split trolley according to claim 1, wherein the first needle bearing (110) and the second needle bearing (250) are both of an insulating structure, and the first needle bearing (110) and the second needle bearing (250) are polyurethane rubber-coated bearings.
8. The left-right reverse-thread adjusting steel rail center detection split trolley according to claim 1, wherein the sliding block (220) and the bearing mounting seat (240) are respectively located above and below the bottom plate (100), and neither the sliding block (220) nor the bearing mounting seat (240) can move up and down through the sliding groove (120).
9. The left-right reverse-thread adjusting steel rail center detection split trolley as claimed in claim 1, wherein the number of the polish rods (230) is two, and the two polish rods are respectively installed at two end portions of the threaded rod (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210007513.XA CN114368398A (en) | 2022-01-06 | 2022-01-06 | Left-right reverse thread adjusting steel rail center detection split trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210007513.XA CN114368398A (en) | 2022-01-06 | 2022-01-06 | Left-right reverse thread adjusting steel rail center detection split trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114368398A true CN114368398A (en) | 2022-04-19 |
Family
ID=81141185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210007513.XA Pending CN114368398A (en) | 2022-01-06 | 2022-01-06 | Left-right reverse thread adjusting steel rail center detection split trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114368398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116279651A (en) * | 2023-05-25 | 2023-06-23 | 安徽建筑大学 | High-speed railway track detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130061482A1 (en) * | 2011-09-13 | 2013-03-14 | Robert N. Madderom | Rail Cant Measurement Tool and Method |
| CN108944995A (en) * | 2018-08-30 | 2018-12-07 | 左常亮 | A kind of pin-connected panel checking of clearance vehicle for motor car inspection and repair library |
| CN110184865A (en) * | 2019-06-23 | 2019-08-30 | 刘雪侠 | A kind of rail traffic positioning device being easily installed |
| CN112726305A (en) * | 2020-12-24 | 2021-04-30 | 赣州轩义科技有限公司 | Accurate grinding device in railway rails surface |
| CN113562007A (en) * | 2021-08-18 | 2021-10-29 | 浙江省交通投资集团有限公司智慧交通研究分公司 | Track inspection robot walking part capable of self-adaptively crossing turnout and turnout crossing method |
| CN214749986U (en) * | 2021-05-07 | 2021-11-16 | 牛玉清 | Positioning device for improving flaw detection head of steel rail |
| CN214823319U (en) * | 2021-04-19 | 2021-11-23 | 厦门交测智能科技有限公司 | Rail welding seam health monitoring device |
-
2022
- 2022-01-06 CN CN202210007513.XA patent/CN114368398A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130061482A1 (en) * | 2011-09-13 | 2013-03-14 | Robert N. Madderom | Rail Cant Measurement Tool and Method |
| CN108944995A (en) * | 2018-08-30 | 2018-12-07 | 左常亮 | A kind of pin-connected panel checking of clearance vehicle for motor car inspection and repair library |
| CN110184865A (en) * | 2019-06-23 | 2019-08-30 | 刘雪侠 | A kind of rail traffic positioning device being easily installed |
| CN112726305A (en) * | 2020-12-24 | 2021-04-30 | 赣州轩义科技有限公司 | Accurate grinding device in railway rails surface |
| CN214823319U (en) * | 2021-04-19 | 2021-11-23 | 厦门交测智能科技有限公司 | Rail welding seam health monitoring device |
| CN214749986U (en) * | 2021-05-07 | 2021-11-16 | 牛玉清 | Positioning device for improving flaw detection head of steel rail |
| CN113562007A (en) * | 2021-08-18 | 2021-10-29 | 浙江省交通投资集团有限公司智慧交通研究分公司 | Track inspection robot walking part capable of self-adaptively crossing turnout and turnout crossing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116279651A (en) * | 2023-05-25 | 2023-06-23 | 安徽建筑大学 | High-speed railway track detection device |
| CN116279651B (en) * | 2023-05-25 | 2023-07-21 | 安徽建筑大学 | High-speed railway track detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114368398A (en) | Left-right reverse thread adjusting steel rail center detection split trolley | |
| CN114312874A (en) | Rack and pinion components of a whole that can function independently rail center detects components of a whole that can function independently dolly | |
| CN107089480A (en) | A kind of movable roller bed device | |
| CN201385220Y (en) | Modularized rail set structure | |
| CN103753372B (en) | Numerical control turnout grinder | |
| CN106840716B (en) | Traction equipment | |
| CN201740639U (en) | Device for testing combined axial and torsional load of journal box spring | |
| CN114368399A (en) | Split trolley for detecting center of reverse-thread limiting steel rail | |
| CN205483584U (en) | Footboard rigidity comprehensive properties testing equipment | |
| CN114291123A (en) | Double herringbone connecting rod adjusting steel rail center detection split trolley | |
| CN114274990A (en) | Split trolley for adjusting center of steel rail through four parallel connecting rods | |
| CN103029018A (en) | Special chamfering device for end surfaces of linear guide rails | |
| CN204449912U (en) | A kind of lathe linear guides locking device | |
| CN203334149U (en) | Equipment used for grinding surface of track paved in rail during passing period and grinding frame used in equipment | |
| EP0845653B1 (en) | Coordinate measuring device | |
| CN216684425U (en) | Automatic digital display rail inspection vehicle for adjusting center of steel rail by screw thread | |
| CN220243242U (en) | Clamping device for rail flaw detection | |
| CN205483526U (en) | A experimental exemplar installation mechanism for footboard rigidity comprehensive properties is experimental | |
| CN203267012U (en) | Clamping table of tire mold | |
| CN105598625A (en) | Mobile tool positioning and locking device | |
| CN220680566U (en) | Automobile part clamping mechanism | |
| CN204101276U (en) | A kind of automobile safety belt retractor testing machine | |
| CN207668818U (en) | A kind of pre-assembled tooling of public transport type escalator top steering arm and main driving | |
| CN206065936U (en) | Lathe headstock moving structure and lathe | |
| CN113802453B (en) | Transverse position-adjusting height-adjusting support for magnetic suspension rail transit bridge |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220419 |
|
| RJ01 | Rejection of invention patent application after publication |