CN210037041U - Force measuring steel rail calibration device - Google Patents
Force measuring steel rail calibration device Download PDFInfo
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- CN210037041U CN210037041U CN201920882348.6U CN201920882348U CN210037041U CN 210037041 U CN210037041 U CN 210037041U CN 201920882348 U CN201920882348 U CN 201920882348U CN 210037041 U CN210037041 U CN 210037041U
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- 229910000831 Steel Inorganic materials 0.000 title abstract description 49
- 239000010959 steel Substances 0.000 title abstract description 49
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a wheel rail power test field discloses a dynamometry rail calibration device, include the supporting seat and connect in the depression bar and the pull rod of supporting seat, the depression bar sets up to follow the vertical downwardly extending of supporting seat, and the pull rod sets up to extend along the direction slope of keeping away from the depression bar gradually downwards from the supporting seat, and dynamometry rail calibration device includes two pull rods, and two pull rods set up in the both sides of depression bar symmetrically, and the one end of keeping away from the supporting seat of depression bar is provided with the loader, and the one end of keeping away from the supporting seat of pull rod is provided with holds the rail ware, and the top of supporting seat. The force measuring steel rail calibration device of the utility model can be stably installed on the steel rail by adopting the stable structure of the pressure rod and the two pull rods, well bear the acting force applied to the steel rail during calibration and ensure the accuracy of the calibration result; and the device can be used for demarcating the vertical force of the steel rail and the transverse force of the steel rail, has simple and reliable structure and is convenient to manufacture and use.
Description
Technical Field
The utility model relates to a wheel rail power test field specifically relates to a dynamometry rail calibration device.
Background
With the increasing speed of high-speed trains, higher requirements are put on the running safety of the high-speed trains, and therefore, monitoring the running state of train vehicles and ensuring the running safety of the trains become very important. The wheel-rail force test has very important significance for guaranteeing train running safety in the running of railway vehicles, can accurately detect the wheel-rail force and is directly related to the judgment of dangerous operation states of train hunting instability, wheel tread scratch, overload and the like. In the wheel-rail force test, a calibration device is usually needed to periodically calibrate the force-measuring steel rail.
At present, a certain research result is found in the force measuring steel rail calibration device in China, but a plurality of defects still exist: the operation is complex, the disassembly and the assembly cannot be realized, and the device is heavy and inconvenient for carrying by experimenters; in the test process, the acting force applied to the steel rail during calibration cannot be well borne, and the device slightly shakes to influence the calibration result; when calibrating different measuring points, an experimenter usually needs to lift the calibrating device to move back and forth on the track and repeatedly install the calibrating device, and the whole calibrating process is inconvenient; the vertical force and the transverse force of the steel rail need to be applied by two sets of devices respectively, and the use is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dynamometry rail calibration device to solve above-mentioned at least one problem.
In order to realize the above-mentioned purpose, the utility model provides a dynamometry rail calibration device, including the supporting seat and connect in the depression bar and the pull rod of supporting seat, the depression bar sets up to follow the vertical downwardly extending of supporting seat, the pull rod sets up to follow the supporting seat is kept away from downwards gradually the direction slope of depression bar extends, dynamometry rail calibration device includes two the pull rod, two the pull rod set up symmetrically in the both sides of depression bar, keeping away from of depression bar the one end of supporting seat is provided with the loader, keeping away from of pull rod the one end of supporting seat is provided with holds the rail ware, the top of supporting seat is provided with horizontal counter-force seat.
Alternatively, the top surface of the lateral reaction force seat is configured to be able to fit the inner side surface of the rail.
Optionally, the pull rod is detachably connected to the support seat.
Optionally, the pull rod is rotatably connected to the support seat, so that an included angle between the pull rod and the press rod is adjustable.
Optionally, the loader includes hydraulic jack, force transducer and rail contact that from top to bottom connect gradually, the bottom surface of rail contact sets up to agree with the top surface of rail.
Optionally, the rail gripping device includes a caliper seat fixedly connected to the pull rod and two calipers installed on the caliper seat and capable of being respectively clamped on two sides of the steel rail.
Optionally, the caliper is detachably mounted to the caliper mount.
Optionally, the caliper seat is provided with two sliding grooves for respectively mounting two calipers, one end of each sliding groove is formed into an open shape for allowing the calipers to enter the sliding groove, and the other end of each sliding groove is formed into a closed shape for preventing the calipers from falling out of the end.
Optionally, the rail holder comprises a pulley movable along a rail, the pulley being connected to the caliper mount.
Optionally, the pulley is fixedly connected with the caliper seat through a bolt.
The force measuring steel rail calibration device of the utility model can be stably installed on the steel rail by adopting the stable structure of the pressure rod and the two pull rods, well bear the acting force applied to the steel rail during calibration and ensure the accuracy of the calibration result; and the device can be used for demarcating the vertical force of the steel rail and the transverse force of the steel rail, has simple and reliable structure and is convenient to manufacture and use.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of a force measuring rail calibration device according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is an enlarged view of a portion C of fig. 1.
Description of the reference numerals
1-a support seat, 11-a pin shaft, 2-a compression bar, 3-a pull rod, 4-a loader, 41-an oil jack, 42-a force sensor and 43-a steel rail contact head; 5-rail grasping device, 51-clamp seat, 511-sliding chute, 52-clamp, 53-pulley, 54-bolt and 6-transverse reaction seat.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, the use of directional terms such as "upper, lower, left, right, vertical" in the absence of a contrary intention is generally meant to refer to the orientation as shown in the drawings.
The utility model provides a force measuring steel rail calibration device, which comprises a supporting seat 1, a pressure rod 2 and a pull rod 3 which are connected with the supporting seat 1, the pressing rod 2 is arranged to extend vertically downwards from the supporting seat 1 (that is, the upper end of the pressing rod 2 is connected to the supporting seat 1), the pull rod 3 is arranged to extend obliquely downwards from the supporting seat 1 in a direction gradually away from the pressing rod 2 (that is, the upper end of the pull rod 3 is connected to the supporting seat 1), the force measuring steel rail calibration device comprises two pull rods 3, the two pull rods 3 are symmetrically arranged at two sides of the pressure rod 2, a loader 4 is arranged at one end of the pressure rod 2, which is far away from the supporting seat 1 (namely, the lower end of the pressure rod 2), a rail holding device 5 is arranged at one end of the pull rod 3, which is far away from the supporting seat 1 (namely, the lower end of the pull rod 3), and a transverse counter-force seat 6 is arranged above the supporting seat 1.
In the above, the arrangement mode of the pressing rod 2 and the two pull rods 3 can be seen in fig. 1, the two pull rods 3 are in a shape of a Chinese character 'ba', and the pressing rod 2 is located on the central line of the Chinese character 'ba'. Through the arrangement, when the vertical force of the steel rail is calibrated, the two pull rods 3 can stably support the press rod 2, and the calibration device is prevented from shaking, so that the calibration device can well bear the acting force applied to the steel rail during calibration, and the accuracy of a calibration result is ensured. Additionally, the utility model discloses a top at supporting seat 1 sets up horizontal counter-force seat 6, can make calibration device is applicable to the horizontal force of demarcation rail, thereby makes the utility model discloses a calibration of vertical power and horizontal force can be realized to one set of device. In addition, the calibration device also has the advantages of simple and reliable structure and convenience in manufacture and use.
When the device is used, when the vertical force of the steel rail needs to be calibrated, the calibration device can be vertically placed on the steel rail on one side, then the loader 4 is made to contact with a measuring point to be calibrated on the top surface of the steel rail, the two rail holders 5 are made to clamp the steel rail, and finally the vertical force is applied to the steel rail through the loader 4 for calibration; when the transverse force of the steel rail needs to be calibrated, the calibrating device can be horizontally placed between the steel rails on two sides of the same rail, the transverse counter-force seat 6 on one end is kept tight with the steel rail on the non-calibrating side, the loader 4 on the other end is vertically aligned with a measuring point to be calibrated of the steel rail on the calibrating side, and finally the transverse force is applied to the steel rail through the loader 4 for calibration.
In order to further improve the stability of the device during the calibration of the transverse force, the top surface of the transverse reaction force seat 6 may be configured to be able to fit the inner side surface of the rail.
Since the pull rod 3 and the rail holder 5 are not required to be used when calibrating the lateral force, the pull rod 3 can be detachably connected to the support base 1. Therefore, when the transverse force of the steel rails is calibrated, the two pull rods 3 can be firstly detached from the supporting seat 1, and then the device is horizontally placed between the steel rails on two sides; when the vertical force of the steel rail is calibrated, two pull rods 3 are arranged on the supporting seat 1.
The utility model discloses in, still can with pull rod 3 rotationally connect in supporting seat 1, so that pull rod 3 with contained angle between the depression bar 2 is adjustable. Thus, when not in use, the pull rod 3 can be rotated to draw it closer to the middle press rod 2 for carrying. In addition, in the process of calibrating the vertical force, when the device is placed on a steel rail, the loader 4 can well contact with the steel rail to apply force to the steel rail by adjusting the included angle between the pull rod 3 and the press rod 2, and the rail holder 5 can better clamp the steel rail, so that the calibration device can adapt to various different working conditions. It should be noted that the pull rod 3 can be fixed at any position, that is, after the pull rod 3 is rotated to a proper angle, the pull rod 3 can be fixed on the support base 1, so as to prevent the pull rod 3 from rotating during the force application process. The utility model discloses in, 3 accessible arbitrary suitable modes of pull rod are connected with supporting seat 1, as long as can realize rotating and in rotating fixed can, the utility model discloses do not do the restriction, of course above-mentioned connection also can realize dismantling of pull rod 3 and supporting seat 1 simultaneously. According to an embodiment of the present invention, the pull rod 3 may be connected to the supporting seat 1 through a pin 11 (see fig. 2).
In the present invention, the loader 4 may be any member that can apply force. According to the utility model discloses an embodiment of well loader 4, as shown in FIG. 3, loader 4 can be including hydraulic jack 41, force sensor 42 and the rail contact 43 that from top to bottom connects gradually, the bottom surface of rail contact 43 sets up to agree with the top surface of rail. The force sensor 42 is arranged to facilitate controlled loading by the experimenter. The rail contact head 43 and the rail can adopt 0.1 taper surface contact to simulate wheel rail contact. When the force measuring steel rail calibrating device is used, the steel rail contact head 43 can be placed at the position of a steel rail to be calibrated, the hydraulic jack 41 is a unit for applying force, the force is transmitted to the steel rail through the steel rail contact head 43 under the action of the hydraulic jack 41, the strain gauge arranged on the steel rail can feed back the strain load, meanwhile, the force sensor 42 arranged between the hydraulic jack 41 and the steel rail contact head 43 can feed back the magnitude of the force load applied by the hydraulic jack 41, and the calibration work of the force measuring steel rail is realized by establishing the relation between the strain load and the force load.
In the present invention, the rail holder 5 may be any member capable of clamping the rail. According to an embodiment of the present invention, as shown in fig. 4, the rail holder 5 may include a clamp seat 51 fixedly connected to the pull rod 3 and two clamps 52 installed on the clamp seat 51 and capable of being respectively clamped on two sides of the steel rail.
Wherein the caliper 52 can be detachably mounted to the caliper mount 51. This facilitates movement of the calibration device on the rail.
Specifically, for the installation of the caliper 52 and the caliper seat 51, as shown in fig. 4, two slide grooves 511 for respectively installing the two calipers 52 may be provided on the caliper seat 51, one end of the slide groove 511 is formed in an open shape for allowing the caliper 52 to enter the slide groove 511, and the other end of the slide groove 511 is formed in a closed shape for preventing the caliper 52 from coming out of the end. During installation, the caliper 52 can slide into the sliding groove 511 from the opening end of the sliding groove 511 to complete the installation. Due to the blocking of the closed end of the sliding slot 511, the caliper 52 can be prevented from sliding due to the stress during the use process, so that the structure is not stable. When the loader 4 applies force, the middle pressure rod 2 is pressed to move upwards, and the calipers 52 of the two pull rods 3 are driven to clamp the inner side of the rail head of the steel rail, so that a stable structure is formed.
In the present invention, the rail holder 5 may further include a pulley 53 capable of moving along the rail, and the pulley 53 is connected to the caliper seat 51 (see fig. 4). Therefore, the experimenter can push the calibration device to move on the track, so that the experimenter can conveniently perform calibration experiments on different measuring points. When calibrating different measuring points, an experimenter can take off the calipers 52 from the calipers seat 51 after the oil jack 41 is unloaded, and then push the calibrating device to the next measuring point, which is very convenient.
As shown in fig. 4, the pulley 53 may be fixedly connected to the caliper seat 51 by a bolt 54.
Furthermore, in the present invention, the pressing rod 2 and the pulling rod 3 may be hollow rods. The specific structures of the hydraulic jack 41, the force sensor 42, the rail contact 43, the caliper seat 51, the caliper 52, and the lateral reaction force seat 6 can be seen from the drawings, and will not be described in detail herein. Of course, other structural variations that can satisfy the functions of each component are also within the scope of the present invention.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. The utility model provides a dynamometry rail calibration device, its characterized in that, including supporting seat (1) and connect in depression bar (2) and pull rod (3) of supporting seat (1), depression bar (2) set up to follow the vertical downwardly extending of supporting seat (1), pull rod (3) set up to follow supporting seat (1) is down along keeping away from gradually the direction slope of depression bar (2) extends, dynamometry rail calibration device includes two pull rod (3), two pull rod (3) set up symmetrically in the both sides of depression bar (2), keeping away from of depression bar (2) the one end of supporting seat (1) is provided with loader (4), keeping away from of pull rod (3) the one end of supporting seat (1) is provided with and holds rail ware (5), the top of supporting seat (1) is provided with horizontal counter-force seat (6).
2. Force measuring rail calibration device according to claim 1, characterized in that the top surface of the lateral counterforce seat (6) is arranged to be able to fit the inner side surface of the rail.
3. Force measuring rail calibration device according to claim 1, characterized in that the tie rod (3) is detachably connected to the support base (1).
4. Force measuring rail calibration device according to claim 1, characterized in that the tie rod (3) is rotatably connected to the support base (1) so that the angle between the tie rod (3) and the press rod (2) is adjustable.
5. A force measuring rail calibration device according to any one of claims 1-4, wherein the loader (4) comprises an oil jack (41), a force sensor (42) and a rail contact head (43) which are sequentially connected from top to bottom, and the bottom surface of the rail contact head (43) is arranged to be capable of being engaged with the top surface of the rail.
6. Force measuring rail calibration device according to any of claims 1-4, characterized in that the rail gripping means (5) comprises a caliper seat (51) fixedly connected to the tie rod (3) and two calipers (52) mounted on the caliper seat (51) and capable of being respectively clamped on both sides of the rail.
7. Force measuring rail calibration device according to claim 6, characterized in that the calliper (52) is detachably mounted to the calliper seat (51).
8. Force measuring rail calibration device according to claim 7, characterized in that the caliper seat (51) is provided with two slide slots (511) for mounting two calipers (52), respectively, one end of each slide slot (511) is formed into an open shape for allowing the calipers (52) to enter the slide slot (511), and the other end of each slide slot (511) is formed into a closed shape for preventing the calipers (52) from falling out of the end.
9. Force measuring rail calibration device according to claim 6, characterized in that the rail holder (5) comprises a pulley (53) movable along the rail, said pulley (53) being connected to the calliper seat (51).
10. Force measuring rail calibration device according to claim 9, characterized in that the pulley (53) is fixedly connected to the caliper mount (51) by means of a bolt (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882348.6U CN210037041U (en) | 2019-06-12 | 2019-06-12 | Force measuring steel rail calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882348.6U CN210037041U (en) | 2019-06-12 | 2019-06-12 | Force measuring steel rail calibration device |
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| Publication Number | Publication Date |
|---|---|
| CN210037041U true CN210037041U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920882348.6U Active CN210037041U (en) | 2019-06-12 | 2019-06-12 | Force measuring steel rail calibration device |
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| CN (1) | CN210037041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229736A (en) * | 2020-12-14 | 2021-01-15 | 西南交通大学 | Wheel-rail force calibration device, method and system |
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2019
- 2019-06-12 CN CN201920882348.6U patent/CN210037041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229736A (en) * | 2020-12-14 | 2021-01-15 | 西南交通大学 | Wheel-rail force calibration device, method and system |
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Address after: 100011 Beijing, Dongcheng District Anwai Binhe West Road No. 22 Shenhua building Co-patentee after: Shenhua Railway Equipment Co.,Ltd. Patentee after: China Shenhua Energy Co.,Ltd. Address before: 100011 Beijing, Dongcheng District Anwai Binhe West Road No. 22 Shenhua building Co-patentee before: SHENHUA RAIL AND FREIGHT WAGONS TRANSPORT Co.,Ltd. Patentee before: China Shenhua Energy Co.,Ltd. |