CN113109133A - Rail surface hardness measuring device - Google Patents
Rail surface hardness measuring device Download PDFInfo
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- CN113109133A CN113109133A CN202110383322.9A CN202110383322A CN113109133A CN 113109133 A CN113109133 A CN 113109133A CN 202110383322 A CN202110383322 A CN 202110383322A CN 113109133 A CN113109133 A CN 113109133A
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- 238000007542 hardness measurement Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
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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
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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Abstract
The invention discloses a rail surface hardness measuring device, which comprises: the utility model provides a slide subassembly and measuring subassembly, the subassembly that slides can follow the track on the track, measuring subassembly includes support piece, strike the body and locate the first inductor on the impact body, support piece is connected with the subassembly that slides, support piece is equipped with the direction inclined plane that sets up for the slope of rail surface, and on the direction of advancing of the subassembly that slides, the interval between direction inclined plane and the rail surface increases gradually, when the impact body is placed on the direction inclined plane, the impact body can follow the direction inclined plane and from support piece landing and strike the rail surface, first inductor is used for measuring impact velocity and rebound velocity when the impact body strikes the rail surface. The speed of the impact body when sliding along the guide inclined plane can be decomposed into the component speed parallel to the rail surface, and the component speed can offset the moving speed of the sliding component in the forward direction, so that the impact body can vertically impact the rail surface to acquire the impact speed and the rebound speed of the impact body. The device has simple structure, simple operation and high measurement efficiency.
Description
Technical Field
The invention relates to the technical field of rail transit detection, in particular to a rail surface hardness measuring device.
Background
With the rapid development of socioeconomic in China, the railway industry has been developed greatly, especially the technology level in China is continuously improved, wherein the construction of high-speed railways reaches the top-grade level in the world. To ensure the safety of railway operation, not only the quality of infrastructure construction in the early stage of the railway needs to be ensured, but also the later-stage inspection and maintenance work of railway equipment needs to be done. At present, with the increase of the axle weight and the operation amount of railway operation, the problem of the diseases of the steel rail is gradually serious, for example, the steel rail falls off blocks, wave-shaped abrasion, scratches and the like, the hardness of the steel rail is changed due to the generation of the diseases, and the hardness of the steel rail needs to be measured in time in order to ensure the quality of the rail and the driving safety. At present, the hardness of a rail surface is mainly measured in a manual mode, however, the manual detection range is small, and meanwhile, the conditions of complicated operation process and low efficiency exist.
Disclosure of Invention
In view of the above, it is necessary to provide a rail surface hardness measuring device which has a simple structure and is easy to operate, and which can effectively improve the working efficiency of operators.
A rail face hardness measuring device comprising: subassembly and measuring component slide, the subassembly that slides can move ahead along the track on the track, measuring component includes support piece, strikes the body and locates first inductor on the impact body, support piece with slide the subassembly and be connected, support piece is equipped with the direction inclined plane that sets up for rail face slope, and is in slide the subassembly on the direction of moving ahead, the direction inclined plane with interval between the rail face increases gradually, it places to strike the body when on the direction inclined plane, strike the body and can follow the direction inclined plane is followed support piece is last to be slided and is strikeed the rail face, first inductor is used for measuring strike the body striking impact velocity and rebound velocity when the rail face.
In the rail surface hardness measuring device, the measuring component is arranged on the sliding component and comprises a support part, an impact body and a first sensor. The support piece is provided with a guide inclined plane which is obliquely arranged relative to the rail surface, and the distance between the guide inclined plane and the rail surface is gradually increased in the advancing direction of the sliding assembly. Thus, whenWhen the sliding assembly moves forwards on the rail, the speed of the impact body sliding along the guide inclined plane can be divided into the component speed parallel to the rail surface, and the component speed can offset the moving speed of the sliding assembly in the forward direction, so that the impact body can vertically impact the rail surface. When the impact body impacts the rail surface, the first sensor arranged on the impact body can measure the impact speed V of the impact body 1mm away from the rail surfaceAAnd a rebound velocity VBFurther, the formula HL is 1000 × (V)B/VA) And obtaining the rail surface hardness value, wherein HL represents the Richter hardness value. The rail surface hardness measuring device is simple in structure and concise in operation process, and can effectively improve the measuring efficiency.
The technical solution is further explained below:
in one embodiment, when the impact body is disposed on the guide inclined surface, a surface of the impact body, which is in contact with the guide inclined surface, is a sliding surface, after the impact body slides from the guide inclined surface, a surface of the impact body, which collides with the rail surface, is an impact surface, the sliding surface is not perpendicular to the impact surface, and an angle between the sliding surface and the impact surface is an obtuse angle.
In one embodiment, the impact body has an oblique parallelepiped structure, and the sliding surface and the impact surface are two adjacent surfaces of the oblique parallelepiped structure.
In one embodiment, the sliding assembly is provided with a driving unit and a second sensor which are electrically connected with each other, the second sensor is used for measuring the moving speed of the sliding assembly, the supporting piece is hinged on the sliding assembly, and the driving unit is connected with the supporting piece and used for driving the supporting piece to rotate relative to the sliding assembly so as to adjust the inclination angle of the guide inclined plane relative to the rail surface.
In one embodiment, the sliding assembly is further provided with a controller, the controller is electrically connected with the driving unit and the second sensor respectively, and the controller is used for controlling the driving unit to adjust the inclination angle of the guide inclined plane relative to the rail surface according to the moving speed of the sliding assembly detected by the second sensor.
In one embodiment, the sliding assembly is further provided with an automatic recoverer and a connecting rope, the automatic recoverer is electrically connected with the controller, one end of the connecting rope is connected with the automatic recoverer, the other end of the connecting rope is connected with the impact body, and after the impact body impacts the rail surface, the automatic recoverer automatically recovers the connecting rope to enable the impact body to recover to the guide inclined surface.
In one embodiment, the automatic recoverer comprises a second motor and a second rotating shaft, the second rotating shaft is connected with the output end of the second motor, one end of the connecting rope is connected with the second rotating shaft and can be wound on the second rotating shaft, and the second motor drives the second rotating shaft to recover or release the connecting rope.
In one embodiment, the electronic device further comprises a display and a support rod, the support rod is supported between the sliding assembly and the display, the display is electrically connected with the controller, the first sensor and the second sensor, the support rod comprises a fixed section and a telescopic section, at least one accommodating cavity with an opening at one end is arranged in the fixed section, the telescopic section is inserted into the accommodating cavity, a fastening bolt is arranged on the fixed section in a penetrating mode, the end portion of the fastening bolt is in press fit with the telescopic section, the telescopic section is connected with the display, and the fixed section is connected with the sliding assembly.
In one of them embodiment, the subassembly that slides includes first crossbeam, second crossbeam and connecting rod, first crossbeam with the second crossbeam interval sets up, just first crossbeam spanes between two tracks, the one end of second crossbeam is set up on the track, the one end of connecting rod with first crossbeam is connected, the other end of connecting rod with the second crossbeam is kept away from orbital one end is connected, the both ends of first crossbeam all are equipped with the walking wheel, the one end that the second crossbeam was set up on the track is also equipped with the walking wheel, just the walking wheel slides and locates on the rail surface, support piece sets up the second crossbeam is set up the one end on the track, just support piece is arranged in the second crossbeam orientation one side of first crossbeam.
In one embodiment, both ends of the first beam are provided with side wheels, and/or one end of the second beam close to the track is provided with the side wheels, the tread of each side wheel is abutted against the inner side wall of the track head, the central axis of each side wheel is perpendicular to the central axis of the travelling wheel, and the sliding direction of each side wheel is consistent with that of the travelling wheel.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:
FIG. 1 is a schematic structural diagram of an impact body of a rail surface hardness measuring device according to an embodiment of the present invention, the impact body being disposed on a support;
FIG. 2 is an enlarged view of the structure at circle A in FIG. 1;
FIG. 3 is a schematic structural diagram of an impact body of the rail surface hardness measuring apparatus according to an embodiment of the present invention when the impact body impacts the rail surface;
FIG. 4 is an enlarged view of the structure at the circle B in FIG. 3;
FIG. 5 is a schematic structural diagram of an impact body in the rail surface hardness measuring apparatus according to an embodiment of the present invention;
FIG. 6 is a top view of a rail surface hardness measuring device according to an embodiment of the invention.
The elements in the figure are labeled as follows:
10. a rail surface hardness measuring device; 11. a glide assembly; 111. a first cross member; 112. a second cross member; 113. a connecting rod; 114. a traveling wheel; 115. a side wheel; 12. a measurement assembly; 121. a support member; 1211. a guide slope; 122. an impact body; 1221. a sliding surface; 1222. an impact surface; 1223. a connecting surface; 123. connecting ropes; 13. a display; 14. a support bar; 141. a fixed section; 142. a telescopic section; 15. fastening a bolt; 16. a push rod; 20. a track; 21. and (4) rail surfaces.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 to 4, in one embodiment, a rail surface hardness measuring device 10 is provided, including: a glide assembly 11 and a measurement assembly 12. Skid assembly 11 is capable of traveling on track 20 and along track 20. The measuring assembly 12 includes a support 121, an impact body 122, and a first sensor (not shown) disposed on the impact body 122. The supporting member 121 is connected to the sliding assembly 11, and the supporting member 121 is provided with a guide slope 1211 obliquely arranged with respect to the rail surface 21 of the rail 20. As shown in fig. 2, the distance between the guide slope 1211 and the rail surface 21 gradually increases in the forward direction of the skid assembly 11. When the impact body 122 is placed on the guide inclined surface 1211, the impact body 122 can slide off the support member 121 along the guide inclined surface 1211 to strike the rail surface 21. The first sensor is used to measure the impact velocity and rebound velocity of the impact body 122 when it strikes the rail surface 21.
In the rail surface hardness measuring device 10, the hardness of the rail surface is measured by the following methodThe measuring assembly 12 is disposed on the sliding assembly 11, and the measuring assembly 12 includes a support 121, an impact body 122 and a first sensor (not shown). The supporting member 121 has a guiding inclined surface 1211 inclined with respect to the rail surface 21, and a distance between the guiding inclined surface 1211 and the rail surface 21 gradually increases in a forward direction of the sliding assembly 11. Therefore, when the sliding component 11 moves forward on the track 20, the speed of the impact body 122 sliding along the guiding inclined surface 1211 can resolve the component speed parallel to the track surface 21, and the component speed can counteract the moving speed of the sliding component 11 in the forward direction, so that the impact body 122 can vertically impact the track surface 21. When the impact body 122 strikes the rail surface 21, the first sensor provided on the impact body 122 can measure the impact velocity V at a distance of 1mm from the rail surface of the impact body 122AAnd a rebound velocity VBFurther, the formula HL is 1000 × (V)B/VA) And obtaining the rail surface hardness value, wherein HL represents the Richter hardness value. The rail surface hardness measuring device 10 is simple in structure and concise in operation process, and can effectively improve the measuring efficiency.
Referring to fig. 2, 4 and 5, when the impact body 122 is disposed on the guiding inclined surface 1211, a surface of the impact body 122 contacting the guiding inclined surface 1211 is a sliding surface 1221. After the impact body 122 slips off the guide slope 1211, the surface of the impact body 122 that collides with the rail surface is the impact surface 1222. The sliding surface 1221 is not perpendicular to the impact surface 1222, and an angle between the sliding surface 1221 and the impact surface 1222 is an obtuse angle. Thus, when the impact body 122 slides down from the guide inclined surface 1211 to strike the rail surface 21, the impact body 122 can strike the rail surface 21 vertically, and the impact surface 1222 can completely contact with the rail surface 21 to strike.
Referring to fig. 5, based on the above embodiment, in a further embodiment, the impact body 122 is an oblique parallelepiped structure, and the sliding surface 1221 and the impact surface 1222 are two adjacent surfaces of the oblique parallelepiped structure.
Alternatively, the shape of the impact body 122 is not particularly limited, and it is sufficient to ensure that the angle between the sliding surface 1221 and the impact surface 1222, and the sliding surface 1221 and the impact surface 1222 is an obtuse angle. For example, the impact body may have an irregular polyhedral structure, wherein the sliding surface 1221 and the impact surface 1222 are two surfaces of the irregular polyhedral structure, respectively.
In addition to the above embodiments, in one embodiment, the sliding assembly 11 is provided with a driving unit (not shown) and a second sensor (not shown) electrically connected to each other. The second sensor is used for measuring the moving speed of the sliding assembly 11, and the supporting member 121 is hinged on the sliding assembly 11. The driving unit is connected to the supporting member 121 for driving the supporting member 121 to rotate relative to the sliding assembly 11 to adjust the inclination angle of the guide inclined surface 1211 relative to the rail surface 21. Thus, the moving speed of the sliding assembly 11 can be obtained through the second sensor, and on the premise of keeping the constant speed to move forward, the inclination angle of the support member 121 and/or the guide inclined surface 1211 relative to the rail surface 21 can be adjusted through the driving unit, so that when the sliding assembly 11 moves forward on the rail 20 and the impact body 122 slides down along the guide inclined surface 1211, the component speed parallel to the rail surface 21 can be resolved by the speed of the impact body 122, and the component speed can counteract the moving speed of the sliding assembly 11 in the forward direction, so as to achieve the purpose that the impact body 122 vertically impacts the rail surface, and thus the measurement result is more accurate and reliable.
Specifically, the driving unit may be a first motor and a first rotating shaft, the first rotating shaft is connected to an output end of the first motor, and the support member 121 is fixedly connected to the first rotating shaft. When the first motor is started, the first motor drives the first rotating shaft to rotate around the central axis thereof, so that the first rotating shaft drives the supporting member 121 to rotate around the first rotating shaft, thereby adjusting the inclination angle of the supporting member 121 relative to the rail surface 21.
Further, in one embodiment, the skid assembly 11 is further provided with a controller (not shown). The controller is electrically connected to the driving unit and the second sensor, and the controller is configured to control the driving unit to adjust the inclination angle of the guiding inclined surface 1211 relative to the rail surface 21 according to the moving speed of the sliding assembly 11 detected by the second sensor. Thus, when the impact body 122 falls, the speed of the impact body can be resolved into the component speed parallel to the rail surface 21, and the component speed can counteract the moving speed of the sliding assembly 11 in the forward direction, so that the impact body 122 impacts the rail surface perpendicularly.
Further, referring to fig. 5, the sliding assembly 11 is provided with a connecting rope 123, one end of the connecting rope 123 is connected with the sliding assembly 11, and the other end of the connecting rope 123 is connected with the impact body 122. The surface of the connecting cord 123 connected to the impact body 122 is a connecting surface 1223. The connecting surface 1223 is disposed opposite to the impact surface 1222, the connecting surface 1223 is adjacent to the sliding surface 1221 and is not perpendicular to the sliding surface 1221, and an angle between the connecting surface 1223 and the sliding surface 1221 is an acute angle. Like this, be connected impact body 122 with slide assembly 11 through connecting rope 123, avoided impact body 122 striking rail surface 21 to kick-back the phenomenon that appears losing or lose, improved the life of whole rail surface hardness measuring device 10.
Referring to fig. 1 to 4, in addition to the above embodiments, in an embodiment, the sliding assembly 11 is further provided with a self-recovery device (not shown). The automatic recoverer is electrically connected with the controller, one end of the connecting rope 123 is connected with the automatic recoverer, and the other end of the connecting rope 123 is connected with the impact body 122.
Further, since one end of the connecting rope 123 is connected to the automatic retrieving device and the other end is connected to the connecting surface 1223, when the impact body 122 impacts the rail surface 21, the first sensor collects the impact speed and the rebound speed, and the impact body 122 can return to the initial position on the guiding inclined surface 1211 again under the mutual cooperation of the automatic retrieving device and the connecting rope 123, so as to perform the next impact operation. Therefore, the automatic recoverer can enable the impact body 122 to impact the rail surface automatically and continuously so as to continuously measure the hardness value of each point on the rail surface, and the device can carry out long-distance measurement on the hardness of the rail surface.
In addition to the above embodiments, in one embodiment, the automatic recovery device includes a second motor (not shown) and a second rotating shaft (not shown). The output of second axis of rotation and second motor is connected, connects the one end of rope 123 and is connected and can twine in the second axis of rotation with the second axis of rotation, and the rope is connected in order to retrieve or transfer to second motor drive second axis of rotation.
Specifically, when the impact body 122 starts to slide downward from the guide slope 1211, the second motor is started and drives the second rotation shaft to rotateReleasing the connecting rope 123 wound around the second rotating shaft, wherein the length of the second rotating shaft releasing the connecting rope 123 is greater than the sliding distance of the impact body 122 on the guide inclined surface 1211 at the same time; meanwhile, when the impact body 122 is disengaged from the guide slope 1211, the length of the second rotating shaft release connection cord 123 is greater than the height of the impact body 122 falling in the same time. So, impact body 122 is at slip and whereabouts in-process, can effectively avoid connecting rope 123 to impact body 122 at the slip with the influence of whereabouts time speed, avoid influencing measurement accuracy. When the impact body 122 impacts the rail surface 21, the impact velocity V at 1mm from the rail surface is measuredAAnd rebound velocity VBMeanwhile, the second motor drives the second rotation shaft to rotate, and at this time, the rotation direction of the second rotation shaft is opposite to the rotation direction when the connection rope 123 is lowered, so that the connection rope 123 can be wound on the second rotation shaft again to achieve the purpose of recovering the connection rope 123, and the impact body 122 can be returned to the inclined surface 1211 to prepare for the next impact operation.
Optionally, the retriever comprises a first electromagnet and a second electromagnet. The first electromagnet is disposed on the supporting member 121, the second electromagnet is disposed on the impact body 122, and the first electromagnet and the second electromagnet are electrically connected to the controller. In this way, the first electromagnet can suck and release the impact body 122 provided with the second electromagnet by means of power on and power off. Specifically, when the sliding assembly 11 moves forward, the first electromagnet and the second electromagnet are not energized, and the impact body 122 slides down the guide slope until striking the rail surface 21. After the impact body 122 impacts the ground, the first sensor measures the impact velocity V of the impact body 122 at a position 1mm away from the rail surfaceAAnd a rebound velocity VBThen, the controller energizes the first electromagnet and the second electromagnet, so that the first electromagnet sucks the impact body 122 provided with the second electromagnet, and the impact body 122 is redirected onto the inclined surface. When the next impact operation is needed, the first electromagnet and the second electromagnet are disconnected from being electrified.
Referring to fig. 1 and fig. 3, on the basis of the above embodiments, in an embodiment, the rail surface hardness measuring device 10 further includes a display 13. The display 13 is electrically connected with the controller, the first sensor and the second sensor. Thus, the display 13 can visually reflect the forward speed of the sliding assembly 11, so that an operator can conveniently control and maintain the forward speed of the sliding assembly 11; meanwhile, the display 13 can also display the inclination angle of the support member 121, the impact speed and the rebound speed of the impact body 122 at a distance of 1mm from the rail surface.
Further, in one embodiment, the rail surface hardness measuring device 10 further includes a support rod 14. A support bar 14 is supported between the glide assembly 11 and the display 13. The supporting rod 14 includes a fixed section 141 and a telescopic section 142. The fixed section 141 is provided with at least one accommodating cavity with an opening at one end, and the telescopic section 142 is inserted in the accommodating cavity. The fastening bolt 15 is inserted into the fixing section 141, and the end of the fastening bolt 15 is in press fit with the telescopic section 142. The telescopic section 142 is connected with the display 13, and the fixed section 141 is connected with the sliding assembly 11. Because the height of the supporting rod 14 can be adjusted, the height position where the display 13 is placed is more beneficial for an operator to view, the applicability of the display 13 is improved, and the whole rail surface hardness measuring device 10 is more convenient to use.
Referring to fig. 1, 3 and 6, in an embodiment based on the above embodiments, the sliding assembly 11 includes a first cross member 111, a second cross member 112 and a connecting rod 113. First crossbeam 111 and second crossbeam 112 interval set up, and first crossbeam 111 spanes between two tracks 20, and the one end of second crossbeam 112 is set up on track 20, and the one end of connecting rod 113 is connected with first crossbeam 111, and the other end of connecting rod 113 is connected with the one end that track 20 was kept away from to second crossbeam 112. Both ends of the first beam 111 are provided with road wheels 114, one end of the second beam 112, which is erected on the rail, is also provided with the road wheels 114, and the road wheels 114 are slidably arranged on the rail surface 21. Thus, by arranging the first cross beam 111, the second cross beam 112 and the connecting rod 113, the stability of the sliding assembly 11 during traveling on the rail is stronger, and the situation that the sliding assembly 11 topples back and forth when the impact body 122 impacts the rail surface 21 can be effectively prevented.
Specifically, the second cross member 112 and the connecting rod 113 are integrally formed on the first cross member 111. Therefore, the connecting strength of the sliding assembly 11 is increased, the service life of the rail surface hardness measuring device 10 is prolonged, and meanwhile, the assembling time is saved.
Optionally, the second beam 112 is detachably connected to the connecting rod 113, and the connecting rod 113 is detachably disposed on the first beam 111. For example, the second beam 112 is connected to the connecting rod 113 by means of a snap or screw connection, and the connecting rod 113 is also mounted to the first beam 111 by means of a snap or screw connection. Thus, when the device is not used or needs to be carried, the first cross beam 111, the second cross beam 112 and the connecting rod 113 can be detached, so that the size of the sliding assembly 11 is reduced, and the device is convenient to carry or store.
Further, in order to enable the sliding assembly 11 to strike the rail surface 21 during the forward movement, the impact body 122 is disposed at one end of the second beam 112 on the rail 20, and the support 121 is disposed at one side of the second beam 112 facing the first beam 111. When the operator pushes the first cross beam 111, the sliding assembly 11 is advanced along the direction of the second cross beam 112.
Specifically, first crossbeam 111, second crossbeam 112, connecting rod 113 and support piece 121 all adopt aluminum alloy material, so, can make whole rail surface hardness measuring device 10's weight lighter, still portable when being convenient for process the preparation, improved rail surface hardness measuring device 10's practicality.
Alternatively, the materials of the first beam 111, the second beam 112, the connecting rod 113, and the support 121 are not particularly limited. For example, the first cross member 111, the second cross member 112, the connecting rod 113 and the supporting member 121 may be made of plastic, so that the weight of the rail surface hardness measuring apparatus 10 is further reduced and the apparatus is convenient to carry. For another example, the first cross member 111, the second cross member 112, the connecting rod 113 and the supporting member 121 may be made of other metal materials, so as to increase the structural strength of the sliding assembly 11.
Referring to fig. 1 and fig. 3, in an embodiment based on the above embodiments, both ends of the first beam 111 are provided with side wheels 115, and/or one end of the second beam 112 close to the rail 20 is provided with side wheels 115. The tread of the side wheel 115 is abutted against the inner side wall of the rail head of the rail 20, the central axis of the side wheel 115 is perpendicular to the central axis of the road wheel 114, and the sliding direction of the side wheel 115 is consistent with that of the road wheel 114. Thus, the side wheels 115 enable the road wheels 114 to travel along the rail surface 21 of the rail 20, and the road wheels 114 are prevented from shifting during the forward traveling process.
It should be noted that "both ends of the first beam 111 are provided with the side wheels 115, and/or one end of the second beam 112 close to the rail 20 is provided with the side wheels 115" includes three embodiments, that is, both ends of the first beam 111 are provided with the side wheels 115, or one end of the second beam 112 close to the rail 20 is provided with the side wheels 115, or both ends of the first beam 111 are provided with the side wheels 115, and one end of the second beam 112 close to the rail 20 is provided with the side wheels 115.
When the first beam 111 is provided with side wheels 115 at both ends and the second beam 112 is provided with side wheels 115 at an end close to the rail 20, the stability of the skid assembly 11 during traveling can be further increased.
Specifically, in the present embodiment, the road wheels 114 and/or the side wheels 115 are made of nylon material. In this way, the road wheels 114 and/or the side wheels 115 can have good insulation and wear resistance.
Referring to fig. 1 and 3, the rail surface hardness measuring device 10 further includes a push rod 16. The push rod 16 is mounted in the middle of the first beam 111, and the push rod 16 extends away from the track. The push rod 16 is arranged to facilitate an operator to push the sliding assembly 11, so that the sliding assembly 11 can move forward at a constant speed; furthermore, locating the push point in the middle of the first cross member 111 also allows the operator to keep the push slide assembly 11 steady.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A rail surface hardness measuring device, comprising: subassembly and measuring component slide, the subassembly that slides can move ahead along the track on the track, measuring component includes support piece, strikes the body and locates first inductor on the impact body, support piece with slide the subassembly and be connected, support piece is equipped with the direction inclined plane that sets up for rail face slope, and is in slide the subassembly on the direction of moving ahead, the direction inclined plane with interval between the rail face increases gradually, it places to strike the body when on the direction inclined plane, strike the body and can follow the direction inclined plane is followed support piece is last to be slided and is strikeed the rail face, first inductor is used for measuring strike the body striking impact velocity and rebound velocity when the rail face.
2. The rail surface hardness measuring device according to claim 1, wherein when the impact body is placed on the guide slope, a surface of the impact body that is in contact with the guide slope is a sliding surface, the impact body slides from the guide slope, a surface of the impact body that collides with the rail surface is an impact surface, the sliding surface is not perpendicular to the impact surface, and an angle between the sliding surface and the impact surface is an obtuse angle.
3. The rail face hardness measuring device according to claim 2, wherein the impact body is of a rhombohedral structure, and the sliding surface and the impact surface are two adjacent surfaces of the rhombohedral structure.
4. The rail surface hardness measuring device according to claim 1, wherein the sliding assembly is provided with a driving unit and a second sensor which are electrically connected with each other, the second sensor is used for measuring the moving speed of the sliding assembly, the supporting member is hinged on the sliding assembly, and the driving unit is connected with the supporting member and is used for driving the supporting member to rotate relative to the sliding assembly so as to adjust the inclination angle of the guide inclined plane relative to the rail surface.
5. The rail surface hardness measuring device according to claim 4, wherein the sliding assembly is further provided with a controller, the controller is electrically connected with the driving unit and the second sensor respectively, and the controller is used for controlling the driving unit to adjust the inclination angle of the guide inclined plane relative to the rail surface according to the moving speed of the sliding assembly detected by the second sensor.
6. The rail surface hardness measuring device according to claim 5, wherein the sliding assembly is further provided with an automatic recoverer and a connecting rope, the automatic recoverer is electrically connected with the controller, one end of the connecting rope is connected with the automatic recoverer, the other end of the connecting rope is connected with the impactor, and after the impactor impacts the rail surface, the automatic recoverer automatically recovers the connecting rope to enable the impactor to be weighed back onto the guide inclined surface.
7. The rail surface hardness measuring device according to claim 6, wherein the automatic retriever includes a second motor and a second rotating shaft, the second rotating shaft is connected to an output end of the second motor, one end of the connecting rope is connected to the second rotating shaft and can be wound around the second rotating shaft, and the second motor drives the second rotating shaft to retrieve or release the connecting rope.
8. The rail surface hardness measuring device according to claim 5, further comprising a display and a support rod, wherein the support rod is supported between the sliding assembly and the display, the display is electrically connected with the controller, the first sensor and the second sensor, the support rod comprises a fixed section and a telescopic section, an accommodating cavity with at least one open end is formed in the fixed section, the telescopic section is inserted into the accommodating cavity, a fastening bolt penetrates through the fixed section, the end of the fastening bolt is in press fit with the telescopic section, the telescopic section is connected with the display, and the fixed section is connected with the sliding assembly.
9. Rail surface hardness measurement device according to any one of claims 1 to 8, the sliding assembly comprises a first cross beam, a second cross beam and a connecting rod, the first cross beam and the second cross beam are arranged at intervals, the first beam spans between the two rails, one end of the second beam is erected on the rails, one end of the connecting rod is connected with the first cross beam, the other end of the connecting rod is connected with one end of the second cross beam far away from the track, the two ends of the first beam are provided with walking wheels, the end of the second beam, which is erected on the track, is also provided with walking wheels, and the walking wheel is slidably arranged on the rail surface, the support piece is arranged at one end of the second cross beam, which is arranged on the rail, and the support piece is arranged at one side of the first cross beam, which faces the second cross beam.
10. The rail surface hardness measuring device according to claim 9, wherein side wheels are arranged at both ends of the first beam, and/or side wheels are arranged at one end of the second beam close to the rail, treads of the side wheels are abutted against inner side walls of rail heads of the rail, central axes of the side wheels are perpendicular to central axes of the travelling wheels, and sliding directions of the side wheels are consistent with sliding directions of the travelling wheels.
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| CN202110383322.9A CN113109133B (en) | 2021-04-09 | 2021-04-09 | Rail surface hardness measuring device |
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