CN110793843A - Steel rail static bending test sample transportation instrument - Google Patents
Steel rail static bending test sample transportation instrument Download PDFInfo
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- CN110793843A CN110793843A CN201911014142.2A CN201911014142A CN110793843A CN 110793843 A CN110793843 A CN 110793843A CN 201911014142 A CN201911014142 A CN 201911014142A CN 110793843 A CN110793843 A CN 110793843A
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- steel rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of steel rail static bending tests, and discloses a steel rail static bending test sample transportation device, aiming at aligning test samples with different sizes to the center of a testing machine more conveniently and ensuring the overall stability in the transportation process. The invention comprises a bracket, wherein two ends of the bracket are provided with first rolling shafts, and the bracket is also provided with a first adjusting mechanism for adjusting the distance between the first rolling shafts; the middle part of the bracket is also fixedly provided with a sample supporting device through a hydraulic lifting device, the sample supporting device comprises a tray and second rolling shafts arranged at two ends of the tray, and the tray is also provided with a second adjusting mechanism used for adjusting one group of second rolling shafts to move or two groups of second rolling shafts to move in the same direction. The invention is suitable for transporting the steel rail static bending test sample.
Description
Technical Field
The invention belongs to the technical field of steel rail static bending tests, and particularly relates to a steel rail static bending test sample transportation instrument.
Background
Steel rails are the main components of railway tracks. Its function is to guide the wheels of the rolling stock forward, to bear the great pressure of the wheels and to transmit them to the sleepers. The rails must provide a continuous, smooth and minimally resistive rolling surface for the wheel. In the electric railway or automatic block section, the rail can also be used as a track circuit. With the vigorous development of the infrastructure of China, the production quantity and quality requirements of the steel rails are higher and higher, and in the production process of the steel rails, in order to ensure that the steel rails can generate a very stable use effect, various detections are needed. The conventional testing machine of the type is troublesome in sample feeding, needs a plurality of people to lift samples, moves to a testing position little by little, and is extremely inconvenient, troublesome and labor-consuming in operation. At the same time, manual sample lifting often results in the sample position being difficult to adjust well to the position where it is to be tested.
Disclosure of Invention
In order to solve the problem that the position of a steel rail sample is difficult to adjust well in the prior art, the invention provides a steel rail static bending test sample transportation device capable of adjusting the sample more accurately.
The technical scheme adopted by the invention is as follows: a steel rail static bending test sample transport apparatus comprises a bracket, wherein two ends of the bracket are provided with first rolling shafts, and the bracket is also provided with a first adjusting mechanism for adjusting the distance between the first rolling shafts; the middle part of the bracket is also fixedly provided with a sample supporting device through a hydraulic lifting device, the sample supporting device comprises a tray and second rolling shafts arranged at two ends of the tray, and the tray is also provided with a second adjusting mechanism used for adjusting one group of second rolling shafts to move or two groups of second rolling shafts to move in the same direction.
Preferably, the second adjusting mechanism comprises a second screw rod, the second screw rod is installed in a transverse groove in the middle of the tray through a second bearing seat, second sliding blocks are arranged below the second rolling shafts, the second sliding blocks are embedded in the transverse groove and can slide along the length direction of the transverse groove, and at least one group of second sliding blocks is in threaded connection with the second screw rod.
Preferably, the two groups of second sliding blocks are in threaded connection with the second screw rod, and threads on the left side of the second screw rod are consistent with threads on the right side of the second screw rod in direction.
Preferably, a driving rod is further arranged in the tray, the driving rod is fixed in the tray through a third bearing seat, the driving rod is perpendicular to the second screw rod, the driving rod is connected with the second screw rod through two groups of matched bevel gears or worm and gear structures, when the driving rod is driven to rotate, the second screw rod also rotates correspondingly, the rotating direction of the driving rod is adjusted, and the rotating direction of the second screw rod also changes correspondingly.
Preferably, the drive rod is provided with a rotating handle at the end thereof which penetrates out of the tray.
Preferably, the first adjusting mechanisms are provided with two groups, any one group of the first adjusting mechanisms comprises a first screw rod arranged at one end of the bracket, the first screw rod is fixed in the inner cavity of the bracket through a first bearing seat, one end of the first screw rod penetrates out of the side face of the bracket, a first sliding block is arranged at the bottom of the first rolling shaft, the first sliding block is embedded in the bracket and can slide left and right on the bracket, and the first sliding block is in threaded connection with the first screw rod.
Preferably, the bracket is also provided with pressure head supports at two sides of the sample supporting device.
Preferably, the first rolling shaft and the second rolling shaft are provided with step shafts and are provided with bearings.
The invention has the beneficial effects that:
1. the first adjusting mechanisms are arranged to adjust the first rolling shafts at the two ends, so that the whole transportation device is more suitable for steel rail samples with different sizes and models, and when the steel rail samples with different models need to be tested, the steel rail samples can be stably placed only by adjusting the distance between the first rolling shafts at the two ends. In addition, the invention also provides a second adjusting mechanism for adjusting the two groups of second rolling shafts, when a test sample is placed on the second rolling shafts, the left and right positions of the test sample can be adjusted by adjusting the positions of the two groups of second rolling shafts, and when the test sample is adjusted to a required position, the subsequent test can be better carried out on the test sample.
2. According to the invention, the second screw rod and the second sliding block are arranged, and the second screw rod is in threaded connection with the second sliding block, so that the second sliding block drives the second rolling shaft above the second screw rod to move when the second screw rod is rotated, and at the moment, the test sample is only required to be fixed with the second rolling shaft moving at the side, so that the position of the test sample can be adjusted, and the final test result is more accurate.
3. According to the invention, two groups of second sliding blocks are in threaded connection with the second screw rod, so that the two groups of second sliding blocks can synchronously move when the second screw rod is rotated, in the synchronous movement process of the second sliding blocks, the test sample above the second rolling shaft does not need to be independently fixed on one side, and the test sample can move leftwards or rightwards along with the second rolling shaft by adjusting the second screw rod, so that the final position of the test sample can be well and accurately adjusted.
4. The tray is provided with the driving rod which is connected with the second screw rod, so that the inconvenience caused by directly rotating the second screw rod is avoided.
5. According to the invention, the first screw rod and the first slide block are arranged, so that the positions of the first rolling shafts at two ends can be adjusted when the first screw rod is rotated, thus the test device can be better adapted to test samples with different specifications, and the use condition of the test device is expanded.
The advantages of the invention are not limited to this description, but are described in more detail in the detailed description for better understanding.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the sample lifting device according to the present invention;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2;
in the figure: 1-bracket, 2-first rolling shaft, 3-pressure head support, 4-tray, 5-second rolling shaft, 6-test sample, 101-second screw rod and 102-driving rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is conventionally understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or the element which is indicated must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the drawings of the embodiments with specific meanings of the terms in the present invention can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The invention is further illustrated with reference to the accompanying drawings and specific examples.
As shown in fig. 1-3, the invention relates to a sample transportation device for a steel rail static bending test, which comprises a bracket 1, wherein two ends of the bracket 1 are provided with first rolling shafts 2, and the bracket 1 is also provided with a first adjusting mechanism for adjusting the distance between the two groups of first rolling shafts 2; the middle part of the bracket 1 is also fixedly provided with a sample supporting device through a hydraulic lifting device, the sample supporting device comprises a tray 4 and second rolling shafts 5 arranged at two ends of the tray, and the tray 4 is also provided with a second adjusting mechanism for adjusting one group of the second rolling shafts 5 to move or two groups of the second rolling shafts 5 to move in the same direction; and pressure head supports 3 are arranged on the bracket 1 and positioned at two sides of the sample supporting device.
When only one group of second rolling shafts 5 are adjusted to move, furthermore, the second adjusting mechanism comprises a second screw rod 101, the second screw rod 101 is installed in a transverse groove in the middle of the tray 4 through a second bearing seat, second sliding blocks are arranged below the second rolling shafts 5, the second sliding blocks are embedded in the transverse groove and can slide along the length direction of the transverse groove, and any group of second sliding blocks is in threaded connection with the second screw rod 101.
In order to adjust the two groups of second rolling shafts 5 to move in the same direction, further, the two groups of second sliding blocks are both in threaded connection with the second screw rod 101, and the threads on the left side of the second screw rod 101 are in the same direction as the threads on the right side.
Because the space of tray 4 both sides is comparatively narrow, if directly adjust second lead screw 101 then seem space constraint, lead to the operation very inconvenient, furthermore, still be equipped with actuating lever 102 in the tray 4, actuating lever 102 is fixed in tray 4 through the third bearing frame, actuating lever 102 sets up with second lead screw 101 perpendicularly, actuating lever 102 is connected with second lead screw 101 through two sets of matched with bevel gear or worm gear structure, when drive actuating lever 102 rotates, corresponding rotation also takes place for second lead screw 101, adjust the direction of rotation of actuating lever 102 simultaneously, second lead screw 101 direction of rotation also takes place corresponding change.
In order to better drive the driving rod 102, further, the driving rod 102 is provided with a rotating handle at an end thereof penetrating out of the tray 4, and a lever is added by the rotating handle, so that the driving rod 102 can be rotated more conveniently and easily.
In order to better adjust the first rolling shaft 2, furthermore, the first adjusting mechanisms are provided with two groups, any one group of the first adjusting mechanisms comprises a first screw rod arranged at one end of the bracket 1, the first screw rod is fixed in the inner cavity of the bracket 1 through a first bearing seat, one end of the first screw rod penetrates out of the side face of the bracket 1, a first sliding block is arranged at the bottom of the first rolling shaft 2, the first sliding block is embedded in the bracket 1 and can slide left and right on the bracket 1, and the first sliding block is in threaded connection with the first screw rod.
In order to prevent the test sample from turning over during the transportation process, further, step shafts are arranged on the first rolling shaft 2 and the second rolling shaft 5, and bearings are mounted on the step shafts. Therefore, the stability of the test sample conveying process is ensured due to the protection of one sides of the first rolling shaft 2 and the second rolling shaft 5.
In specific operation process, adjust the position of the first roll axis 2 in both ends through first adjustment mechanism, then place test sample 6 in on two sets of first roll axes 2 and nudge, make test sample 6 transport to the second roll axis 5 of middle part on, later promote test sample 6 to experimental position, then adjust test sample 6's position through second adjustment mechanism, after adjusting, order about bracket 1 through hydraulic pressure elevating gear and descend, let test sample 6 go on after dropping on pressure head support 3 and test.
Example 1
A steel rail static bending test sample transport apparatus comprises a bracket, wherein two ends of the bracket are provided with first rolling shafts, and the bracket is also provided with a first adjusting mechanism for adjusting the distance between the first rolling shafts; the middle part of the bracket is also fixedly provided with a sample supporting device through a hydraulic lifting device, the sample supporting device comprises a tray and second rolling shafts arranged at two ends of the tray, and the tray is also provided with a second adjusting mechanism used for adjusting one group of second rolling shafts to move or two groups of second rolling shafts to move in the same direction. Through the regulation of first adjustment mechanism and second adjustment mechanism, this transportation apparatus can adapt to the rail sample of more not unidimensional models, can carry out the accuracy to the final position of rail sample simultaneously and adjust, and then improve the accuracy of whole experiment.
Example 2
On the basis of embodiment 1, this embodiment further improves the second adjusting mechanism, specifically, the second adjusting mechanism includes a second lead screw, the second lead screw is installed in a transverse groove in the middle of the tray through a second bearing seat, second sliders are respectively arranged below the second rolling shafts, the second sliders are embedded in the transverse groove and can slide along the length direction of the transverse groove, and at least one group of the second sliders is in threaded connection with the second lead screw. In the embodiment, by arranging the second screw rod and the second sliding block, as the second screw rod is in threaded connection with the second sliding block, the second sliding block drives the second rolling shaft above the second sliding block to move when the second screw rod is rotated, and at the moment, only the test sample needs to be fixed with the second rolling shaft moving laterally, so that the position of the test sample can be adjusted, and the final test result is more accurate.
Example 3
On the basis of embodiment 2, the second adjusting mechanism is further improved in this embodiment, specifically, two sets of second sliding blocks are both in threaded connection with the second screw rod, and the thread on the left side of the second screw rod is in the same direction as the thread on the right side. This embodiment is through setting up two sets of second sliders and second lead screw threaded connection, when rotating the second lead screw like this, synchronous motion can all take place for two sets of second sliders, at second slider synchronous motion in-process, just so need not carry out one side solitary fixed to the test sample of second roll axis top, through adjusting the second lead screw, test sample can take place the removal left or right along with the second roll axis, and then can be good accurate final position of adjusting test sample.
Example 4
On the basis of embodiment 3, thereby this embodiment takes place to rotate the position of adjusting the second roll axis for better drive second lead screw, this embodiment still is equipped with the actuating lever in the tray, the actuating lever passes through the third bearing frame to be fixed in the tray, the actuating lever sets up with the second lead screw is perpendicular, the actuating lever is connected with the second lead screw through two sets of matched with bevel gears or worm gear structure, when the drive actuating lever rotates, the second lead screw also takes place corresponding rotation, adjust the direction of rotation of actuating lever simultaneously, the second lead screw direction of rotation also takes place corresponding change. In order to better adjust the driving rod, the driving rod is provided with a rotating handle at one end penetrating out of the tray. This embodiment is connected through bevel gear behind setting up actuating lever and the second lead screw, and realization that can be very stable is to second lead screw pivoted drive, and then fine realization is to the regulation that test sample removed.
Example 5
On the basis of any one of the above embodiments, the present embodiment further sets the first adjusting mechanism, it is right that the first adjusting mechanism is provided with two sets, any one set of the first adjusting mechanism includes a first lead screw arranged at one end of the bracket, the first lead screw is fixed in the inner cavity of the bracket through a first bearing seat, one end of the first lead screw penetrates out of the side surface of the bracket, a first slider is arranged at the bottom of the first rolling shaft, the first slider is embedded in the bracket and can slide left and right on the bracket, and the first slider is in threaded connection with the first lead screw. Through the arrangement, the test device can be better suitable for test samples with different specifications, and further the use condition of the test device is expanded.
Example 6
On the basis of any one of the above embodiments, in order to prevent the test sample from rolling over during the transportation process, the present embodiment is further improved, and specifically, step shafts are arranged on the first rolling shaft and the second rolling shaft, and bearings are installed on both the first rolling shaft and the second rolling shaft.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (8)
1. The utility model provides a quiet test sample transport apparatus that bends of rail which characterized in that: the device comprises a bracket (1), wherein first rolling shafts (2) are arranged at two ends of the bracket (1), and a first adjusting mechanism for adjusting the distance between the first rolling shafts (2) is further arranged on the bracket (1); the middle part of the bracket (1) is also fixedly provided with a sample supporting device through a hydraulic lifting device, the sample supporting device comprises a tray (4) and second rolling shafts (5) arranged at two ends of the tray, and a second adjusting mechanism used for adjusting the positions of the second rolling shafts (5) is further arranged on the tray (4).
2. The sample transport device for the static bending test of the steel rail according to claim 1, wherein: the second adjusting mechanism comprises a second screw rod (101), the second screw rod (101) is installed in a transverse groove in the middle of the tray (4) through a second bearing seat, a second sliding block is arranged below the second rolling shaft (5), the second sliding block is embedded in the transverse groove and can slide along the length direction of the transverse groove, and at least one group of second sliding blocks is in threaded connection with the second screw rod (101).
3. The sample transport device for the static bending test of the steel rail according to claim 2, wherein: the two groups of second sliding blocks are in threaded connection with the second screw rod (101), and the threads on the left side of the second screw rod (101) are consistent with the threads on the right side in direction.
4. The sample transport device for the static bending test of the steel rail according to claim 3, wherein: still be equipped with actuating lever (102) in tray (4), actuating lever (102) are fixed in tray (4) through the third bearing frame, and actuating lever (102) set up with second lead screw (101) are perpendicular, and actuating lever (102) are connected with second lead screw (101) through two sets of matched with bevel gears.
5. The sample transport device for the static bending test of the steel rail according to claim 4, wherein: the driving rod (102) is provided with a rotating handle at one end penetrating out of the tray (4).
6. A rail static bending test specimen transport apparatus according to any one of claims 1 to 5, wherein: the first adjusting mechanisms are arranged in two groups, any one group of the first adjusting mechanisms comprises a first lead screw arranged at one end of the bracket (1), the first lead screw is fixed in an inner cavity of the bracket (1) through a first bearing seat, one end of the first lead screw penetrates out of the side surface of the bracket (1), a first sliding block is arranged at the bottom of the first rolling shaft (2), the first sliding block is embedded in the bracket (1) and can slide left and right on the bracket (1), and the first sliding block is in threaded connection with the first lead screw.
7. The sample transport device for the static bending test of the steel rail according to claim 1, wherein: and pressure head supports (3) are arranged on the bracket (1) and positioned at two sides of the sample supporting device.
8. The sample transport device for the static bending test of the steel rail according to claim 1, wherein: step shafts are arranged on the first rolling shaft (2) and the second rolling shaft (5) and are provided with bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911014142.2A CN110793843A (en) | 2019-10-23 | 2019-10-23 | Steel rail static bending test sample transportation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911014142.2A CN110793843A (en) | 2019-10-23 | 2019-10-23 | Steel rail static bending test sample transportation instrument |
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| Publication Number | Publication Date |
|---|---|
| CN110793843A true CN110793843A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911014142.2A Pending CN110793843A (en) | 2019-10-23 | 2019-10-23 | Steel rail static bending test sample transportation instrument |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2032989A (en) * | 1931-11-20 | 1936-03-03 | Bethlehem Steel Corp | Rail testing method |
| CN202186681U (en) * | 2011-06-30 | 2012-04-11 | 天水红山试验机有限公司 | Test sample conveyer of steel rail static bending tester |
| KR20120067742A (en) * | 2010-12-16 | 2012-06-26 | 주식회사 포스코 | Bending test device |
| KR101320692B1 (en) * | 2013-06-19 | 2013-10-18 | 한국기계연구원 | Detecting apparatus for rail flexural strength |
| CN103587543A (en) * | 2012-08-14 | 2014-02-19 | 维尔费尔德·雪夫 | Transport and loading system for rail-based vehicles |
| CN203798505U (en) * | 2014-03-24 | 2014-08-27 | 番禺珠江钢管有限公司 | Transverse movement mechanism for feeding steel pipes to hydrostatic testing machine |
| CN204203008U (en) * | 2014-08-14 | 2015-03-11 | 浙江辰鑫机械设备有限公司 | A kind of steel rail static bending pressure testing machine |
| KR20160024289A (en) * | 2014-08-25 | 2016-03-04 | 주식회사 준일테크 | Bending test apparatus by radius for flexible substrate and flexible device |
-
2019
- 2019-10-23 CN CN201911014142.2A patent/CN110793843A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2032989A (en) * | 1931-11-20 | 1936-03-03 | Bethlehem Steel Corp | Rail testing method |
| KR20120067742A (en) * | 2010-12-16 | 2012-06-26 | 주식회사 포스코 | Bending test device |
| CN202186681U (en) * | 2011-06-30 | 2012-04-11 | 天水红山试验机有限公司 | Test sample conveyer of steel rail static bending tester |
| CN103587543A (en) * | 2012-08-14 | 2014-02-19 | 维尔费尔德·雪夫 | Transport and loading system for rail-based vehicles |
| KR101320692B1 (en) * | 2013-06-19 | 2013-10-18 | 한국기계연구원 | Detecting apparatus for rail flexural strength |
| CN203798505U (en) * | 2014-03-24 | 2014-08-27 | 番禺珠江钢管有限公司 | Transverse movement mechanism for feeding steel pipes to hydrostatic testing machine |
| CN204203008U (en) * | 2014-08-14 | 2015-03-11 | 浙江辰鑫机械设备有限公司 | A kind of steel rail static bending pressure testing machine |
| KR20160024289A (en) * | 2014-08-25 | 2016-03-04 | 주식회사 준일테크 | Bending test apparatus by radius for flexible substrate and flexible device |
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Application publication date: 20200214 |