CN214028652U - Automatic centering structure for installation and subway engineering vehicle - Google Patents
Automatic centering structure for installation and subway engineering vehicle Download PDFInfo
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- CN214028652U CN214028652U CN202022292943.XU CN202022292943U CN214028652U CN 214028652 U CN214028652 U CN 214028652U CN 202022292943 U CN202022292943 U CN 202022292943U CN 214028652 U CN214028652 U CN 214028652U
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- 230000033001 locomotion Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
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Abstract
The utility model provides an installation automatic centering structure and subway engineering vehicle, which is used for installing a subway engineering vehicle wheel pair detection device, wherein the subway engineering vehicle comprises a wheel pair, a bogie arranged between the left wheel and the right wheel of the wheel pair and the wheel pair detection device, and the structure comprises an automatic centering sensor arranged at the center line of the wheel pair detection device so as to detect the spacing distance between the automatic centering sensor and the left wheel and the right wheel of the wheel pair; receiving a signal corresponding to the spacing distance, and sending a corresponding displacement control instruction by the automatic alignment controller to calculate the distance difference; the automatic centering driving device is movably arranged on the automatic centering driving device along the axis direction of the left wheel and the right wheel of the wheel pair, and the automatic centering driving device is arranged on the bogie so as to complete centering by adjusting the position of the wheel pair detecting device according to a displacement control instruction. The utility model discloses can solve wheel pair detection device because of the central line department that can't be located accurately between the wheel pair and the problem that the testing result precision is not enough appears.
Description
Technical Field
The utility model relates to a track traffic detects technical field, in particular to installation automatic centering structure and subway machineshop car.
Background
The wheelset is an extremely important part of the vehicle running gear, which not only bears the entire weight of the vehicle body, but also transmits the forces between the wheels and the rails. Whether the wheel set can keep a good technical state or not is related to traffic safety. The wheel continuously rubs with the surface of the steel rail in the running process to cause the abrasion of the wheel tread; in addition, when a wheel passes through a curve or a turnout, the rim abrasion is caused by the friction between the rim part of the wheel and the inner side surface of a steel rail, the overall dimension of the wheel is changed due to the tread abrasion and the rim abrasion, and the abrasion of the wheel is more and more serious along with the high-speed, heavy-load and high-density running of a train. Excessive wear or vertical wear of the wheel rim will reduce the running safety and increase the risk of derailment; if the rim crack of the wheel is not discovered in time, serious driving accidents such as the burst of the wheel and the like can be caused.
In order to master the quality condition of the wheels in real time and eliminate accident potential, the wheel set detection device is invented for detecting the state of the wheel set in real time. Due to the detection principle of the wheel set detection device in part and the requirement of high detection result precision, the wheel set detection device is preferably kept at the center line between the wheel sets. However, in the actual situation, due to the problem of installation accuracy of workers and the problem of displacement variation of related structures in the process of driving, the wheel set detection device is easily positioned at the center line between the wheel sets because of being unable to be accurately positioned, and the problem of insufficient detection result accuracy occurs.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an installation automatic centering structure, solved current wheel pair detection device and located the central line department between the wheel pair because of can't the accuracy easily, and the problem that the testing result precision is not enough appears.
In order to achieve the above object, an embodiment of the present invention provides an automatic centering structure for installation of a detection device of a subway engineering vehicle wheel set, wherein the subway engineering vehicle includes a wheel set, a bogie arranged between a left wheel and a right wheel of the wheel set, and a wheel set detection device; the installation self-centering structure includes:
the automatic centering sensor is arranged at the center line of the wheel set detection device so as to detect the spacing distance between the automatic centering sensor and the left and right wheels of the wheel set;
the automatic alignment controller receives signals corresponding to the spacing distances to calculate distance differences and send corresponding displacement control instructions;
and the wheel pair detection device is movably arranged on the automatic centering driving device along the axis direction of the left wheel and the right wheel of the wheel pair, and the automatic centering driving device is arranged on the bogie so as to adjust the position of the wheel pair detection device according to the displacement control instruction to complete centering.
Optionally, the automatic centering driving device includes:
a transmission device;
the wheel set detection device is movably arranged on the slide rail device in a matched manner;
and the driving motor is connected with the wheel pair detection device through the transmission device so as to adjust the position of the wheel pair detection device on the sliding rail device according to the displacement control instruction to complete centering.
Optionally, the transmission comprises:
the gear is connected with an output shaft of the driving motor;
and the rack is meshed with the gear and is connected with the wheel pair detection device, and the rack is arranged in the sliding rail device in parallel.
Optionally, the slide rail device includes:
the movable piece is connected with the wheel set detection device;
and the limiting guide piece is matched with the moving piece so as to limit the position and the movement direction of the moving piece.
Optionally, the limiting guide member includes a slide rail, the movable member includes a slide block, and the slide block is movably installed in the slide rail.
Optionally, the limiting guide piece comprises a sliding rod, the moving piece comprises a sliding sleeve, and the sliding sleeve is movably sleeved on the sliding rod.
Optionally, a buffer layer is arranged on the inner wall of the sliding sleeve.
Optionally, the automatic centering sensor includes at least one of a hall sensor, a laser sensor, and an ultrasonic ranging sensor.
Optionally, the automatic installation centering structure further includes an external communication device, and a signal input end of the external communication device is connected to a signal output end of the automatic centering controller, so as to externally transmit a signal corresponding to the distance.
The embodiment of the utility model also provides a subway engineering vehicle, which comprises a wheel set, a bogie arranged between the left wheel and the right wheel of the wheel set and a wheel set detection device;
and the automatic mounting centering structure is arranged on the bogie so as to automatically center the mounting of the wheel set detection device.
One of the above technical solutions has the following advantages or beneficial effects:
the embodiment of the utility model provides an in, installation wheel pair detection device perhaps when the vehicle travel process, automatic centering sensor can real-time detection its self and the wheel pair left and right wheel between the spacing distance, because automatic centering sensor installs in wheel pair detection device's central line department, the spacing distance that automatic centering sensor detected is the spacing distance between wheel pair detection device and the wheel pair left and right wheel promptly. The detected interval distance can be transmitted to the automatic centering controller through signals, the automatic centering controller can calculate a distance difference value between the two interval distances to determine whether the automatic centering sensor deviates or not, and then sends a corresponding displacement control command to the automatic centering driving device according to the distance difference value, so that the automatic centering driving device can adjust the wheel set detection device to move to a center line between the left wheel and the right wheel of the wheel set along the axis direction of the left wheel and the right wheel of the wheel set according to the command, and the problem that the detection result precision is insufficient due to the fact that the wheel set detection device cannot be accurately located at the center line between the wheel sets is solved.
Drawings
Fig. 1 is a schematic structural installation diagram of an installation automatic centering structure provided in an embodiment of the present invention;
fig. 2 is a schematic front view of an automatic centering structure according to an embodiment of the present invention;
fig. 3 is a block diagram of a circuit structure for installing an automatic centering structure according to an embodiment of the present invention;
fig. 4 is a right-side view structural diagram of an installation automatic centering structure provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, an embodiment of the present invention provides an automatic centering structure for installing a wheel pair detection device of a subway engineering vehicle, wherein the subway engineering vehicle includes a wheel pair 100, a bogie 200 disposed between left and right wheels of the wheel pair 100, and a wheel pair detection device 300; the installation self-centering structure 400 includes:
an automatic centering sensor 410, wherein the automatic centering sensor 410 is installed at the center line of the wheel set detection device 300 to detect the distance between the automatic centering sensor 410 and the left and right wheels of the wheel set 100;
an automatic alignment controller 430, wherein the automatic alignment controller 430 receives a signal corresponding to the spacing distance to calculate a distance difference and issue a corresponding displacement control command;
the automatic centering driving device 420, the wheel set detecting device 300 can be movably arranged on the automatic centering driving device 420 along the axial direction of the left wheel and the right wheel of the wheel set 100, and the automatic centering driving device 420 is arranged on the bogie 200 so as to adjust the position of the wheel set detecting device 300 according to the displacement control instruction to complete centering.
The embodiment of the utility model provides an applied principle does: when the wheel-set detection device 300 is installed or the vehicle is running, the automatic centering sensor 410 can detect the spacing distance between itself and the left and right wheels of the wheel-set 100 in real time, and since the automatic centering sensor 410 is installed at the center line of the wheel-set detection device 300, the spacing distance detected by the automatic centering sensor 410 is the spacing distance between the wheel-set detection device 300 and the left and right wheels of the wheel-set 100. The detected separation distance is transmitted to the automatic centering controller 430 through a signal, and the automatic centering controller 430 calculates a distance difference between the two separation distances to determine whether the automatic centering sensor 410 is shifted, so as to know whether the wheel-set detection device 300 is located at a center line between the left and right wheels of the wheel set 100, and then sends a corresponding displacement control command to the automatic centering driving device 420 according to the distance difference. After receiving the signal of the displacement control command, the automatic centering driving device 420 adjusts the state of the wheel set detection device 300 according to the command, so that the automatic centering driving device moves to the center line between the left wheel and the right wheel of the wheel set 100 along the axial direction of the left wheel and the right wheel of the wheel set 100, thereby solving the problem that the detection result precision is insufficient because the wheel set detection device 300 is easily positioned at the center line between the wheel sets 100.
In this embodiment, if the distance difference between the two separation distances calculated by the automatic centering controller 430 is 0, it indicates that the position of the automatic centering sensor 410 has not shifted, i.e. the wheelset detection device 300 is located at the center line between the left and right wheels of the wheelset 100, and no adjustment is necessary; if the distance difference between the two separation distances is a value other than 0, it indicates that the position of the automatic centering sensor 410 is shifted, that is, the wheel-set detection device 300 is not located at the center line between the left and right wheels of the wheel-set 100, and at this time, the automatic centering controller 430 may send a corresponding displacement control command to the automatic centering driving device 420 according to the distance difference, so as to adjust the movement of the wheel-set detection device 300 to generate a corresponding displacement, and reach the center line between the left and right wheels of the wheel-set 100.
The distance difference may be positive or negative, the positive or negative meaning may be determined according to a preset setting, a negative value may be defined as the wheel set detection device 300 deviating to the left wheel, and a positive value may be defined as the wheel set detection device 300 deviating to the right wheel.
For example, if the distance difference between the two separation distances is-2, it means that the wheelset detection device 300 has a 2cm position offset to the left wheel, at this time, the automatic centering controller 430 will issue a corresponding displacement control command, and after receiving the signal of the displacement control command, the automatic centering driving device 420 will adjust the state of the wheelset detection device 300 according to the command, so that the wheelset detection device 300 moves to the right wheel by a distance of 2cm along the axial direction of the left and right wheels of the wheelset 100, so as to return the wheelset detection device 300 to the center line between the left and right wheels of the wheelset 100.
For another example, if the distance difference between the two separation distances is 3, it means that the wheelset detection device 300 has a 3cm position offset to the right wheel, at this time, the automatic centering controller 430 will send a corresponding displacement control command, and after receiving the signal of the displacement control command, the automatic centering driving device 420 will adjust the state of the wheelset detection device 300 according to the command, so that the wheelset detection device 300 moves to the left wheel by a distance of 3cm along the axial direction of the left and right wheels of the wheelset 100, so as to return the wheelset detection device 300 to the center line between the left and right wheels of the wheelset 100.
In another embodiment, if the distance difference between the two separation distances is a value other than 0, the automatic centering controller 430 may send a displacement control command to the automatic centering driving device 420 to adjust the motion state of the wheel-set detecting device 300, so as to continuously generate the displacement, during which the automatic centering sensor 410 may continuously detect the separation distance between itself and the left and right wheels of the wheel-set 100, and transmit a signal of the separation distance to the automatic centering controller 430 until the automatic centering controller 430 calculates that the distance difference between the two separation distances is 0; at this time, the automatic centering controller 430 sends a displacement stop command to the automatic centering driving device 420, so that the automatic centering driving device adjusts the motion state of the wheel pair detection device 300 to stop generating displacement, and at this time, the wheel pair detection device 300 is located at the center line between the left and right wheels of the wheel pair 100.
The self-centering driving device 420 is attached to the bogie 200 by being mounted on the bogie 200, thereby supporting the entire mounted self-centering structure 400. The self-centering driving device 420 may be directly mounted on the bogie 200 or indirectly mounted on the bogie 200 through a frame.
The automatic alignment controller 430 may select a single chip microcomputer STM32F103R8 with a 32-bit Coretex-M3 kernel, and the STM32F103R8 has the capabilities of data retrieval calculation, comparison analysis and displacement control signal synthesis. Of course, the automatic pair controller 430 may also select other models of processors in the art having the same or similar functionality.
The automatic centering sensor 410, the automatic centering controller 430, and the automatic centering driving device 420 may be sequentially connected to each other through wires and connectors, such that electrical and signal input/output ports may be sequentially connected to each other, and circuit conduction and signal transmission among the three may be achieved.
Alternatively, as shown in fig. 2, the automatic centering driving device 420 includes:
a transmission 421;
the sliding rail device 422, the wheel set detection device 300 can be movably arranged on the sliding rail device 422 in a matching way;
and the driving motor 423 is connected with the wheelset detection device 300 through a transmission 421, so as to adjust the position of the wheelset detection device 300 on the sliding rail device 422 according to the displacement control command to complete centering.
In this embodiment, after the automatic centering driving device 420 receives the signal of the displacement control command from the automatic centering controller 430, the driving motor 423 starts to operate, and transmits power to the wheel set detecting device 300 through the transmission device 421, so that the detecting device movably fitted to the skid rail device 422 moves along the skid rail device 422 for a corresponding displacement to reach the center line between the left and right wheels of the wheel set 100.
Alternatively, as shown in fig. 2 and 4, the transmission 421 includes:
a gear 4211, wherein the gear 4211 is connected with an output shaft of the driving motor 423;
the rack 4212 and the rack 4212 are meshed with the gear 4211 and connected with the wheel set detection device 300, and the rack 4212 is arranged in parallel on the sliding rail device 422.
In this embodiment, the transmission device 421 includes a gear 4211 and a rack 4212, the gear 4211 is disposed at an output shaft end of the driving motor 423, when the driving motor 423 starts to operate, the gear 4211 rotates and drives a rack 4212 engaged with the gear 4211 and disposed in parallel to the sliding rail device 422 to start to move, and a corresponding displacement is generated along an axial direction of the left and right wheels of the wheel pair 100, so that the wheel pair detection device 300 connected to the rack 4212 reaches a center line between the left and right wheels of the wheel pair 100.
Of course, the transmission 421 is not limited to the rack 4212 and the gear 4211, and other structures or devices in the art can be selected to achieve the above transmission function, for example, the upper transmission function can be achieved by the cooperation of a worm wheel and a worm, or the transmission function can be achieved by a belt transmission.
Optionally, as shown in fig. 2 and 4, the slide rail device 422 includes:
the movable piece 4221 and the movable piece 4221 are connected with the wheel set detection device 300;
the limit guide 4222 is matched with the movable piece 4221 so as to limit the position and the movement direction of the movable piece 4221.
In this embodiment, the sliding rail device 422 includes a movable member 4221 and a limit guide 4222, after the automatic centering driving device 420 receives a signal of a displacement control command from the automatic centering controller 430, the driving motor 423 starts to operate, power is transmitted to the wheel set detection device 300 through the transmission 421, the movable member 4221 connected to the wheel set detection device 300 moves along with the wheel set detection device 300, and due to the presence of the limit guide 4222, the movable member 4221 can only move along the limit guide 4222, so that the position and the moving direction of the wheel set detection device 300 are normalized, and the wheel set detection device is directly moved to the center line between the left and right wheels of the wheel set 100 without deviation in other directions.
Optionally, the limiting guide 4222 includes a sliding rail, the movable member 4221 includes a sliding block, and the sliding block is movably installed in the sliding rail.
In this embodiment, the position-limiting guide 4222 may be formed by a sliding rail, and the movable member 4221 may be formed by a sliding block, and since the sliding block is movably installed in the sliding rail, the wheel-set detecting device 300 connected to the sliding block can only move along the sliding rail, that is, only along the axial direction of the left and right wheels of the wheel set 100, so as to avoid the displacement thereof in other directions.
Optionally, as shown in fig. 2 and 4, the limit guide 4222 includes a sliding rod, the movable member 4221 includes a sliding sleeve, and the sliding sleeve is movably sleeved on the sliding rod.
In this embodiment, the limit guide 4222 may be formed by a sliding rod, and the movable member 4221 may be formed by a sliding sleeve, and since the sliding sleeve is movably sleeved on the sliding rod, the wheel set detecting device 300 connected to the sliding sleeve can only move along the sliding rod, that is, only along the axial direction of the left and right wheels of the wheel set 100, so as to avoid the deviation thereof in other directions.
Of course, the limit guide 4222 is not limited to a sliding rail or a sliding rod, the movable element 4221 is not limited to a sliding block or a sliding sleeve, and the limit guide 4222 and the movable element 4221 may be other structures or devices in the art capable of limiting the position and the moving direction of the wheel set detection device 300.
Optionally, a buffer layer is arranged on the inner wall of the sliding sleeve.
In this embodiment, be equipped with the buffer layer on the inner wall of sliding sleeve, because jolt of vehicle in the motion process, sliding sleeve and slide bar can produce the impact to each other, produce the influence to the integrality of structure and function each other. And the buffer layer arranged between the sliding sleeve and the sliding rod can well weaken the impact of the sliding sleeve and the sliding rod on each other, and ensure the long-time normal work of the sliding sleeve and the sliding rod.
The buffer layer may be an elastic member with a low density, such as a foam plastic or a silica gel layer, or may be other structures capable of achieving the above-mentioned buffering function in the field.
Optionally, the self-centering sensor 410 includes at least one of a hall sensor, a laser sensor, and an ultrasonic ranging sensor.
In this embodiment, the automatic centering sensor 410 may employ one or more of a hall sensor, a laser sensor, and an ultrasonic ranging sensor to detect the separation distance between itself and the left and right wheels of the wheel pair 100.
The Hall sensor determines the spacing distance between the Hall sensor and the left wheel and the right wheel of the wheel pair 100 by forming a magnetic field between the Hall sensor and the left wheel and the right wheel of the metal wheel pair on two sides and generating a potential difference; the laser sensor determines the spacing distance between the laser sensor and the left wheel and the right wheel of the wheel pair 100 through the time difference between the emission and the reception of the same beam/group of laser; the ultrasonic ranging sensor determines the distance between itself and the left and right wheels of the wheel set 100 by the time difference between the transmission and reception of the same ultrasonic wave.
Of course, the self-centering sensor 410 is not limited to the three sensors, and may be other structures or devices in the art that can perform the above-mentioned distance measuring function.
Optionally, as shown in fig. 3, the automatic centering structure 100 further includes an external communication device 440, and a signal input end of the external communication device 440 is connected to a signal output end of the automatic centering controller 430, so as to transmit a signal corresponding to the spacing distance to the outside.
In this embodiment, after acquiring the signal corresponding to the separation distance transmitted by the automatic pair controller 430, the external communication device 440 transmits the signal to the external device, so that the staff can know the position status of the wheel pair detection device 300 in real time.
The automatic-to-controller 430 and the external communication device 440 may be electrically and communicatively connected to each other through a wire and a connector.
For example, the external communication device 440 may be connected to the AMP174055-2 on the product port of the automatic centering controller 430 through the AMP282104-1 pin terminal on the interface thereof, so as to realize the electrical connection and the communication connection with each other.
The external device may be an electronic device mounted on a vehicle in which the automatic centering structure 100 is mounted, or may be a remote server.
As shown in fig. 1, an embodiment of the present invention further provides a subway engineering vehicle, which includes a wheel set, a bogie 200 disposed between left and right wheels of the wheel set 100, and a wheel set detection device 300;
and the automatic centering structure 400 for installation, wherein the automatic centering structure 400 for installation is installed on the bogie 200 to automatically center the wheel pair detection device 300.
The specific structure of the automatic centering structure 400 can refer to the above embodiments, and details are not repeated herein. Since the metro engineering vehicle in this embodiment includes all the solutions of all the embodiments of the installation automatic centering structure 400, at least the same technical effects as the installation automatic centering structure 400 are obtained, and a description thereof is omitted here.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an installation automatic centering structure for subway engineering vehicle is to detection device's installation, subway engineering vehicle include the wheel pair, locate bogie between the wheel pair left and right wheel to and wheel pair detection device, its characterized in that, installation automatic centering structure includes:
the automatic centering sensor is arranged at the center line of the wheel set detection device so as to detect the spacing distance between the automatic centering sensor and the left and right wheels of the wheel set;
the automatic alignment controller receives signals corresponding to the spacing distances to calculate distance differences and send corresponding displacement control instructions;
and the wheel pair detection device is movably arranged on the automatic centering driving device along the axis direction of the left wheel and the right wheel of the wheel pair, and the automatic centering driving device is arranged on the bogie so as to adjust the position of the wheel pair detection device according to the displacement control instruction to complete centering.
2. An installation self-centering structure as claimed in claim 1, wherein said self-centering driving means comprises:
a transmission device;
the wheel set detection device is movably arranged on the slide rail device in a matched manner;
and the driving motor is connected with the wheel pair detection device through the transmission device so as to adjust the position of the wheel pair detection device on the sliding rail device according to the displacement control instruction to complete centering.
3. An installation self-centering structure as claimed in claim 2, wherein said transmission means comprises:
the gear is connected with an output shaft of the driving motor;
and the rack is meshed with the gear and is connected with the wheel pair detection device, and the rack is arranged in the sliding rail device in parallel.
4. A mounting self-centering arrangement, as claimed in claim 2, wherein said slide rail means comprises:
the movable piece is connected with the wheel set detection device;
and the limiting guide piece is matched with the moving piece so as to limit the position and the movement direction of the moving piece.
5. The automatic centering structure for installation according to claim 4, wherein said limiting guide member comprises a slide rail, said movable member comprises a slide block, and said slide block is movably installed in said slide rail.
6. The automatic centering structure for installation according to claim 4, wherein said limiting guide member comprises a sliding rod, said movable member comprises a sliding sleeve, and said sliding sleeve is movably sleeved on said sliding rod.
7. The automatic centering structure for installation according to claim 6, wherein a buffer layer is provided on the inner wall of said sliding sleeve.
8. An installation self-centering structure as claimed in any one of claims 1 to 7, wherein said self-centering sensor comprises at least one of a Hall sensor, a laser sensor, an ultrasonic ranging sensor.
9. An automatic centering structure according to any one of claims 1-7, wherein said automatic centering structure further comprises an external communication device, a signal input end of said external communication device is connected with a signal output end of said automatic centering controller, so as to transmit a signal corresponding to said spacing distance to the outside.
10. The subway engineering vehicle is characterized by comprising a wheel set, a bogie arranged between a left wheel and a right wheel of the wheel set and a wheel set detection device;
and the mounting automatic centering structure as claimed in any one of claims 1 to 9, which is mounted on the bogie to automatically center the mounting of the wheelset detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022292943.XU CN214028652U (en) | 2020-10-14 | 2020-10-14 | Automatic centering structure for installation and subway engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022292943.XU CN214028652U (en) | 2020-10-14 | 2020-10-14 | Automatic centering structure for installation and subway engineering vehicle |
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| Publication Number | Publication Date |
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| CN214028652U true CN214028652U (en) | 2021-08-24 |
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| CN202022292943.XU Expired - Fee Related CN214028652U (en) | 2020-10-14 | 2020-10-14 | Automatic centering structure for installation and subway engineering vehicle |
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Granted publication date: 20210824 |