CN113062160B - Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding turning machine - Google Patents
Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding turning machine Download PDFInfo
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- CN113062160B CN113062160B CN202110422481.5A CN202110422481A CN113062160B CN 113062160 B CN113062160 B CN 113062160B CN 202110422481 A CN202110422481 A CN 202110422481A CN 113062160 B CN113062160 B CN 113062160B
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- 238000003801 milling Methods 0.000 title claims abstract description 96
- 238000000227 grinding Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 48
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The embodiment of the application provides a milling and grinding positioning device, a steel rail milling and grinding system and a milling and grinding lathe, wherein the milling and grinding positioning device is arranged below the steel rail milling and grinding device and comprises the following components: the mounting bracket is used for being fixed on the steel rail milling device; the initial position sensor is arranged on the mounting bracket; the working position sensor is arranged on the mounting bracket and is arranged at intervals on the same circumference with the initial position sensor; the probe rod device is rotationally connected with the mounting bracket; the probe rod device is provided with a suspension end and is used for contacting with the steel rail; the feeler lever device rotates within a range limited between the home position sensor and the work position sensor. The milling and grinding positioning device of the embodiment mainly adopts a mechanical structure, and compared with the optical positioning device in the related art, the milling and grinding positioning device reduces the cost and is not easy to damage on the premise of ensuring the positioning precision.
Description
Technical Field
The application relates to a steel rail on-line maintenance equipment manufacturing technology, in particular to a milling and grinding positioning device, a steel rail milling and grinding system and a milling and grinding lathe.
Background
Rail milling is a very important item in railway routine maintenance operation, affecting the service life of rails. Along with the development of science and technology, special devices special for rail milling and grinding operations appear, and the appearance of the device greatly saves manpower and improves the operation efficiency.
When the rail milling device runs from an initial position to a working position, the rail milling device needs to be positioned horizontally and vertically initially, so that the follow-up working process can be ensured to be carried out smoothly. In the related art solution, the positioning process is generally implemented by a laser, an optical sensor, and the like. However, the proposal in the related art has the problems of high input cost, easy damage in the using process and the like.
Disclosure of Invention
In order to solve one of the technical problems, the embodiment of the application provides a milling and grinding positioning device, a steel rail milling and grinding system and a milling and grinding lathe.
According to a first aspect of the embodiment of the present application, there is provided a milling positioning device, disposed below a rail milling device, comprising:
the mounting bracket is used for being fixed on the steel rail milling device;
the initial position sensor is arranged on the mounting bracket;
The working position sensor is arranged on the mounting bracket and is arranged at intervals on the same circumference with the initial position sensor;
The probe rod device is rotationally connected with the mounting bracket; the probe rod device is provided with a suspension end and is used for contacting with the steel rail; the feeler lever device rotates within a range limited between the home position sensor and the work position sensor.
According to a second aspect of the embodiments of the present application, there is provided a rail milling system comprising: rail milling device and milling positioning device as described above.
According to a third aspect of an embodiment of the present application there is provided a milling machine comprising a rail milling system as described above.
The embodiment of the application provides a milling and grinding positioning device and a steel rail milling and grinding system, wherein the milling and grinding positioning device is arranged below the steel rail milling and grinding device and comprises: the mounting bracket is used for being fixed on the steel rail milling device; the initial position sensor is arranged on the mounting bracket; the working position sensor is arranged on the mounting bracket and is arranged at intervals on the same circumference with the initial position sensor; the probe rod device is rotationally connected with the mounting bracket; the probe rod device is provided with a suspension end and is used for contacting with the steel rail; the feeler lever device rotates within a range limited between the home sensor and the work position sensor. The milling and grinding positioning device can integrally move along with the steel rail milling and grinding device, the probe rod device is rotated to the position limited by the initial position sensor, the probe rod device is located at the lowest end and is in contact with the steel rail, and the probe rod device is rotated to the position limited by the operation position sensor along with continuous descending of the milling and grinding device, so that vertical positioning of the milling and grinding device is completed. The milling and grinding positioning device of the embodiment mainly adopts a mechanical structure, and compared with the optical positioning device in the related art, the milling and grinding positioning device reduces the cost and is not easy to damage on the premise of ensuring the positioning precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 shows a schematic diagram of a milling positioning device according to an embodiment of the present application;
fig. 2 is a schematic diagram showing a front view of a milling positioning device according to an embodiment of the present application;
FIG. 3 is a schematic top view of a milling positioning device according to an embodiment of the present application;
Shown in fig. 4 is a partial cross-sectional view of fig. 3;
FIG. 5 is an exploded view of a milling positioning apparatus according to an embodiment of the present application;
fig. 6 (a) -6 (c) are diagrams showing a positioning process of a milling positioning device according to an embodiment of the present application.
Reference numerals:
10-milling and positioning device; 20-milling the steel rail;
100-mounting a bracket; 110-a first mount; 120-a second mount; 130-connecting the legs; 140-positioning ring;
200-rotating shaft; 210-positioning a probe rod; 211-a compression spring; 220-swinging needle; 230-a driver;
300-initial position sensor; 310-initial position sensor holder;
400-job site sensor; 410-job site sensor rack;
500-elastic restoring element.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
Example 1
The embodiment provides a milling and grinding positioning device, which comprises: the device comprises a mounting bracket, an initial position sensor, a working position sensor and a probe rod device. Wherein, the installing support is used for fixing in rail milling device's below. The initial position sensor and the operation position sensor are both arranged on the mounting bracket, are positioned on the same surface of the mounting bracket and on the same circumference, are arranged at intervals, and keep a certain distance. The probe rod device is rotatably connected with the mounting bracket and can rotate relative to the mounting bracket. The feeler lever device has a free end for contact with the rail, the feeler lever device being rotatable within a range defined by both the initial position sensor and the working position sensor.
The operation process of the positioning device is as follows: firstly, limiting the probe rod device to the position marked by the initial position sensor, namely: the probe rod device is in an initial free falling state; in the working process, the suspension end of the probe rod device is contacted with the steel rail, and the probe rod device rotates relative to the mounting bracket along with the continuous descending of the milling device until the probe rod device rotates to the position marked by the working position sensor. At this time, the position of the milling device is the preset position, and the vertical positioning of the milling device is completed through the process.
The positioning device is composed of a mechanical structure, and compared with the optical positioning device in the related art, the positioning device reduces the cost and is not easy to damage on the premise of ensuring the positioning precision.
For the probe rod device and the sensor, various implementation manners may be adopted, and this embodiment provides a specific manner:
Fig. 1 shows a schematic diagram of a milling positioning device according to an embodiment of the present application; fig. 2 is a schematic diagram showing a front view of a milling positioning device according to an embodiment of the present application; FIG. 3 is a schematic top view of a milling positioning device according to an embodiment of the present application; FIG. 4 is a partial cross-sectional view of FIG. 3, and FIG. 5 is an exploded view of a milling positioning apparatus according to one embodiment of the present application; please refer to fig. 1-5.
The present embodiment provides a milling and grinding positioning device 10, which is disposed below a rail milling and grinding device and comprises a mounting bracket 100, a rotating shaft 200, an initial position sensor 300 and a working position sensor 400.
The mounting bracket 100 is used for being fixed on the rail milling device, and a specific fixing manner may be welding, clamping or bolting, which is not limited in this embodiment. The rotating shaft 200 is arranged on the mounting bracket 100 in a penetrating manner and can rotate relative to the mounting bracket 100, specifically, a through hole is formed in the mounting bracket 100, a shaft sleeve is arranged in the through hole, the rotating shaft 200 is arranged in the shaft sleeve, and a bearing is arranged between the shaft sleeve and the rotating shaft 200, so that the rotating shaft 200 can rotate relative to the shaft sleeve. One end of the rotating shaft 200 is connected with a positioning probe rod 210, the other end of the rotating shaft 200 is connected with a balance pin 220, and the positioning probe rod 210 and the balance pin 220 are sleeved on the rotating shaft 200 and can synchronously rotate relative to the rotating shaft 200. The home position sensor 300 is disposed on the mounting bracket 100, the work position sensor 400 is disposed on the mounting bracket 100 and is located on the same circumference as the home position sensor 300, the balance pin 220 is disposed between the home position sensor 300 and the work position sensor 400, and the interval between the home position sensor 300 and the work position sensor 400 (refer to the circular arc distance between the home position sensor 300 and the work position sensor 400) is equal to the initial vertical distance between the milling positioning device 10 and the rail 20 to be milled. When balance 220 contacts home position sensor 300 or work position sensor 400, respectively, generates a corresponding signal for indicating that the balance is in place.
FIGS. 6 (a) -6 (c) are diagrams illustrating the positioning process of the milling positioning device 10 according to an embodiment of the present application; please refer to fig. 6 (a) -6 (c). When the rail milling device is positioned in the process of moving from the initial position to the working position, as shown in fig. 6 (a), the balance needle 220 contacts the initial position sensor 300, and the positioning probe 210 is at the lowest end and is in an initial state; along with the lowering of the rail milling device along the vertical direction, the positioning probe rod 210 gradually contacts with the upper surface of the rail and is compressed, so that the rotating shaft 200 is driven to rotate, the swing needle 220 contacts with the working position sensor 400, the positioning probe rod 210 is positioned at the highest end, and is in the working state as shown in fig. 6 (b), and the positioning in the vertical direction is finished. Then the rail milling device starts to move towards the inner side of the rail and gradually reaches the edge of the inner side of the rail, at this time, the positioning probe rod 210 falls off from the rail and swings to the working position, and the corresponding swing needle 220 contacts the working position sensor 400, and is in the state shown in fig. 6 (c), and the transverse positioning is finished. The rail milling device is then moved along the rail 20 to be milled for the milling operation.
The milling and grinding positioning device 10 of the present embodiment mainly adopts a mechanical structure, and compared with the optical positioning device in the related art, the cost is reduced and the damage is not easy to damage on the premise of ensuring the positioning accuracy.
Specifically, referring to fig. 1 and 3, the mounting bracket 100 of the present embodiment includes a first mounting seat 110 and a second mounting seat 120 that are disposed opposite to each other, and the first mounting seat 110 and the second mounting seat 120 are connected by a plurality of connection legs 130. The first mounting seat 110 may be used to connect to a rail milling device, for example, a plurality of threaded holes may be provided in the first mounting seat 110, and the first mounting seat 110 may be fixed to the rail milling device by means of threaded connection. The second mounting base 120 is used for bearing the rotating shaft 200, the initial position sensor 300 and the working position sensor 400. Specifically, the rotating shaft 200 is disposed on the second mounting seat 120 in a penetrating manner, the positioning probe rod 210 is located between the first mounting seat 110 and the second mounting seat 120, and the balance needle 220, the initial position sensor 300 and the working position sensor 400 are all located at one side of the second mounting seat 120 away from the first mounting seat 110.
Further, in this embodiment, a positioning ring 140 is disposed on a side of the second mounting seat 120 facing away from the first mounting seat 110, an annular gap is formed between the positioning ring 140 and the rotating shaft 200, and the initial position sensor 300 and the working position sensor 400 are detachably disposed in the annular gap, so that the distance between the initial position sensor 300 and the working position sensor 400 can be conveniently adjusted as required.
In an alternative embodiment, a slider with a threaded hole is provided in the annular gap, the slider can be locked or slid relative to the annular gap, and bolts are provided on both the home position sensor 300 and the work position sensor 400, and the bolts can be fixed in the threaded holes of the slider. When the interval between the initial position sensor 300 and the working position sensor 400 needs to be adjusted, the sliding block corresponding to at least one sensor can be loosened, so that the sliding block slides along the annular gap, and the sliding block can be locked and fixed when the sliding block slides to a preset position.
The home sensor 300 is mounted to the positioning ring 140 by the home sensor bracket 310, and the work position sensor 400 is mounted to the positioning ring 140 by the work position sensor bracket 410. The support is provided with a buffer structure for buffering acting force between the probes.
Optionally, a compression spring 211 is further disposed between the positioning probe rod 210 and the rotating shaft 200, and an elastic deformation direction of the compression spring 211 extends along an axial direction of the rotating shaft 200, and by providing the compression spring 211, when the positioning probe rod 210 receives an axial force along the rotating shaft 200, the positioning probe rod 210 can move along an axial direction thereof for a certain distance so as to buffer an impact caused thereby.
Further, the controller may be further in communication with the home sensor 300 and the work position sensor 400, and when the balance 220 contacts the home sensor 300 or the work position sensor 400, the controller may receive a corresponding signal and display the current status through an external display, for example: the controller may be a programmable logic controller, coupled to the touch screen. Or the controller may be an electronic terminal integrating the display device.
Optionally, a driving member 230 is further sleeved on the rotating shaft 200, and the driving member 230 is in communication connection with the controller and is used for driving the rotating shaft 200 to rotate. Further, the driving part 230 includes a swing motor connected to an external power source. In this embodiment, the driving member 230 is preferably a rotary driver sleeved on the rotating shaft 200, so as to reduce the number of parts of the positioning device and improve the integration degree; the external power source is preferably an aerodynamic power source, so as to meet the requirement of switching the initial position and the working position of the positioning probe rod 210.
Or the driving part 230 is a linear motor, one end of which is hinged to the rotation shaft 200, and the rotation shaft 200 is rotated by applying a tangential force to the rotation shaft 200 through the linear motor. The linear motor can also be replaced by a hydraulic linear motion mechanism or a wind cylinder driven linear motion mechanism.
The initial position sensor 300 and the work position sensor 400 may be used in various ways, for example: the sensor may be a force sensor, and when the balance 220 is in contact with the home position sensor 300 and the work position sensor 400, the sensor detects a force change with the balance 220, and determines the position of the probe as a detection result. Or may be a sensor for measuring torque, and the position of the probe is determined by detecting the torque of the rotating shaft 200. When the driving member 230 is a motor, the sensor may also be a voltage sensor or a current sensor, and the position of the probe rod is determined by detecting the output voltage or current of the motor.
Optionally, the milling positioning device 10 of this embodiment further includes an elastic restoring member 500, one end of the elastic restoring member 500 is connected to the mounting bracket 100, the other end of the elastic restoring member 500 is connected to the positioning probe rod 210, and the elastic restoring member 500 can provide a certain initial tension, so as to ensure that the positioning probe rod 210 is always kept at a reliable initial position when the driving member 230 has no power source input. The elastic restoring member 500 in the drawings provided in this embodiment is not connected to the positioning probe 210, but is connected to each other in actual use.
Optionally, the mounting bracket 100 and the positioning probe 210 are provided with hanging rings, and two ends of the elastic reset piece 500 are connected to the hanging rings through hooks.
Example two
The embodiment provides a steel rail milling system, which comprises a steel rail milling device and the first embodiment. The rail milling device can be realized in a common manner in the prior art, and the embodiment is not limited. The milling positioning device 10 may in particular be fixed to a bottom structure of the milling device, for example: a base or a housing, etc.
The rail milling and grinding system of the embodiment is provided with the milling and grinding positioning device of the first embodiment, so that compared with the related art, the rail milling and grinding system of the first embodiment has the advantages that the cost is reduced on the premise of ensuring the positioning accuracy, and the rail milling and grinding system is not easy to damage.
The embodiment also provides a steel rail milling and grinding vehicle which comprises a vehicle frame, a running system, the steel rail milling and grinding system and the like.
The rail milling system and the milling lathe provided by the embodiment have the same technical effects as the positioning device.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The utility model provides a mill grinds positioner, sets up in rail mill grinds device's below, its characterized in that includes:
the mounting bracket is used for being fixed on the steel rail milling device;
the initial position sensor is arranged on the mounting bracket;
The working position sensor is arranged on the mounting bracket and is arranged at intervals on the same circumference with the initial position sensor; the distance between the initial position sensor and the working position sensor means that the arc distance between the initial position sensor and the working position sensor is equal to the initial vertical distance between the milling and grinding positioning device and the steel rail to be milled;
the probe rod device is rotationally connected with the mounting bracket; the probe rod device is provided with a suspension end and is used for contacting with the steel rail; the probe rod device rotates in a limited range between the initial position sensor and the working position sensor;
The probe rod device comprises:
the rotating shaft is arranged on the mounting bracket in a penetrating way and can rotate relative to the mounting bracket; one end of the rotating shaft is connected with a swing needle, and the swing needle is positioned between the initial position sensor and the working position sensor;
one end of the positioning probe rod is connected with the rotating shaft and synchronously rotates with the rotating shaft; the other end is used as the suspension end; the positioning probe rod and the balance pin are sleeved on the rotating shaft and can synchronously rotate relative to the rotating shaft;
the mounting bracket comprises a first mounting seat and a second mounting seat which are oppositely arranged, and the first mounting seat and the second mounting seat are connected through a plurality of connecting supporting legs;
The rotating shaft is arranged on the second mounting seat in a penetrating manner, the positioning probe rod is positioned between the first mounting seat and the second mounting seat, and the swing needle, the initial position sensor and the operation position sensor are all positioned on one side, away from the first mounting seat, of the second mounting seat;
One side of the second mounting seat, which is away from the first mounting seat, is provided with a positioning ring, an annular gap is formed between the positioning ring and the rotating shaft, and the initial position sensor and the operation position sensor are detachably arranged in the annular gap; a sliding block with a threaded hole is arranged in the annular gap, the sliding block can be locked or slid relative to the annular gap, bolts are arranged on the initial position sensor and the working position sensor, and the bolts can be fixed in the threaded holes of the sliding block;
A compression spring is further arranged between the positioning probe rod and the rotating shaft, and the elastic deformation direction of the compression spring extends along the axial direction of the rotating shaft;
Further comprises: the controller is in communication connection with the initial position sensor and the working position sensor;
the rotating shaft is also sleeved with a driving piece, and the driving piece is in communication connection with the controller and is used for driving the rotating shaft to rotate.
2. The milling and positioning device according to claim 1, further comprising an elastic restoring member, wherein one end of the elastic restoring member is connected to the mounting bracket, and the other end of the elastic restoring member is connected to the positioning probe.
3. The milling and grinding positioning device according to claim 2, wherein the mounting bracket and the positioning probe rod are provided with hanging rings, and two ends of the elastic resetting piece are connected to the hanging rings through hooks.
4. The milling and positioning device according to claim 1, wherein the suspension end of the positioning probe is provided with a shaft post and a roller rotatably arranged on the shaft post.
5. A rail milling system, comprising: rail milling device and milling positioning device according to any of claims 1-4.
6. A rail milling machine comprising the rail milling system of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422481.5A CN113062160B (en) | 2021-04-20 | Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding turning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422481.5A CN113062160B (en) | 2021-04-20 | Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding turning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113062160A CN113062160A (en) | 2021-07-02 |
| CN113062160B true CN113062160B (en) | 2024-07-16 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215441233U (en) * | 2021-04-20 | 2022-01-07 | 中国铁建高新装备股份有限公司 | Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding vehicle |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215441233U (en) * | 2021-04-20 | 2022-01-07 | 中国铁建高新装备股份有限公司 | Milling and grinding positioning device, steel rail milling and grinding system and milling and grinding vehicle |
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