Self-extending intelligent ripper

Abstract

The present application provides a self-stretching intelligent tamper, belonging to the technical field of railway ballast track tamper vehicle, comprising: a top connecting frame for connecting different direction tamper devices and tamper vehicles; a regulating mechanism is connected to the lower end of the connecting frame, for adjusting the oil pressure provided by the oil pressure mechanism according to the different degrees of dirt and mechanical state of the track bed, so that the self-stretching intelligent tamper head expands to the best working size; an oil pressure mechanism is connected to the lower end of the regulating mechanism, for transmitting oil pressure and providing oil pressure for the self-stretching intelligent tamper head; the lower end of the oil pressure mechanism is connected to a tamper body, and the lower end of the tamper body is connected to a tamper head. The present application effectively avoids the disturbance and damage of the tamper head to the indirect contact force chain between the sleepers and the ballast when the tamper is pulled out; reduces the resistance of the tamper insertion, eliminates the need for manual loosening operation before the tamper operation, and improves the efficiency of the tamper operation; the size of the tamper head can be automatically adjusted according to the different mechanical properties of the track bed, realizing differentiated tampering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ballast track tamper car, and particularly relates to a self-extensible intelligent tamper. BACKGROUND

[0002] Ballast track is one of the main structure forms of railway track and is widely used at home and abroad. The track bed is laid below the sleeper and is formed by the accumulation and compaction of graded gravel, which plays the role of uniform load distribution, providing longitudinal and lateral resistance and elasticity of the track. Good mechanical state of the track bed is crucial for maintaining good service performance of the ballast track. However, under the long-term joint action of high-frequency train load and complex external environment, the ballast often deteriorates, such as crushing and pulverization. In addition, the invasion of external dust and small particles from the lower roadbed causes the contamination of the ballast track bed, reduces the mechanical properties of the ballast track bed, and further causes diseases such as track bed settlement and sleeper emptying, resulting in geometric irregularities of the ballast track. Large-scale road maintenance machinery tamper operation is the main measure to improve the mechanical properties of the track bed. The operation process is as follows: the tamper installed below the car body of the tamper car is inserted into the track bed between the sleepers, then under the action of clamping force, the tamper rotates to extrude and compact the ballast particles to the sleeper bottom, and finally the tamper is pulled out, and a tamper operation is completed. However, although the tamper operation improves the mechanical properties of the track bed at the sleeper bottom to a certain extent, the effect is extremely limited, and the mechanical properties of the track bed after maintenance are still at a poor level, which leads to poor service performance of the ballast track, and the line needs to be operated at a low speed for a long time. Therefore, in order to ensure the good service performance of the ballast track, how to effectively improve the mechanical properties of the track bed at the sleeper bottom and improve the effect of the tamper operation is a technical problem to be solved at present.

[0003] At present, the part of the tamper end contacting with the track bed is a T-shaped structure extending outward from both ends. Although the T-shaped tamper improves the mechanical properties of the sleeper bottom track bed to some extent, it still has the following shortcomings: during the insertion stage of the tamper, due to the shape of the tamper end, the contact area between the tamper and the track bed is large, which increases the insertion resistance of the tamper. In serious track bed hardening sections, the tamper cannot be inserted to the position under the sleeper that needs to be tamped, and the tamping operation cannot be carried out smoothly, resulting in low tamping operation efficiency. During the clamping stage of the tamper, the contact area between the tamper and the track bed is crucial to ensure the good service performance of the track after maintenance. The larger the contact area between the tamper and the track bed, the wider the clamping range of the tamper, the more the clamped ballast, the denser the sleeper bottom track bed, and the better the mechanical properties of the sleeper bottom track bed, which in turn ensures the good service performance of the track after maintenance. However, the existing T-shaped tamper end has a small area, which results in a very limited contact area between the tamper and the track bed during the clamping stage, poor denseness of the sleeper bottom track bed, and thus affects the service performance of the track after maintenance, resulting in poor tamping operation effect. During the extraction stage of the tamper, the part of the T-shaped tamper end extending outward from both sides will collide with the sleeper ballast, which will destroy the indirect contact force chain between the sleeper ballast and cause the mechanical properties of the sleeper ballast to decrease. In summary, the T-shaped tamper still has the above shortcomings and cannot meet the needs of tamping operation. Therefore, it is urgent to optimize the design of the tamper to reduce the impact of the tamper on the mechanical properties of the sleeper ballast during the extraction stage, improve the tamping operation effect, and improve the tamping operation efficiency.

[0004] In summary, the T-shaped tamper with the end extending outward from both sides is used for tamping operation at home and abroad, which has the following shortcomings:

[0005] (1) Poor operation effect. The contact area between the tamper and the sleeper bottom track bed during the clamping stage is crucial to ensure the good service performance of the track after maintenance. However, due to the small volume of the T-shaped tamper end, the contact area between the tamper and the sleeper bottom track bed during the clamping stage cannot meet the needs of actual tamping operation, which results in the sleeper bottom track bed after maintenance not meeting the expected requirements, and thus causes the poor service performance of the ballasted track and the long-time speed limit operation of the track after maintenance, resulting in poor tamping operation effect.

[0006] (2) Low operation efficiency. The T-shaped tamper with the end extending outward from both sides is currently used in the field, and due to the shape of the tamper, the volume of the tamper end is large, which increases the contact area between the tamper and the track bed during the insertion stage, and thus increases the insertion resistance of the tamper. In serious track bed hardening sections, the tamper cannot be inserted to the position under the sleeper that needs to be tamped, and the tamping operation cannot be carried out smoothly, resulting in the need for multiple manual ballast loosening during a single operation process and low tamping operation efficiency.

[0007] (3) The disturbance and damage to the track bed. During the extraction phase of the tamper, the T-shaped tamper end will have a strong interaction with the track bed, causing disturbance and damage to the track bed. Specifically, during the extraction process of the tamper, the T-shaped tamper end will collide with the inter-sleeper ballast, breaking the inter-sleeper track bed contact force chain, resulting in a decrease in the mechanical properties of the inter-sleeper track bed. SUMMARY

[0008] The purpose of the present application is to provide a self-stretching intelligent tamper to solve at least one of the technical problems in the background art.

[0009] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0010] The present application provides a self-stretching intelligent tamper, comprising:

[0011] The top end of the connecting frame is used to connect different direction tamping devices and tamping vehicles;

[0012] The lower end of the connecting frame is connected with an adjusting mechanism, which is used to adjust the oil pressure provided by the oil pressure mechanism according to the different degrees of dirt and mechanical state of the track bed, so that the self-stretching intelligent tamper can be expanded to the best working size;

[0013] The lower end of the adjusting mechanism is connected with an oil pressure mechanism, which is used to transmit oil pressure and provide oil pressure for the self-stretching intelligent tamper;

[0014] The lower end of the oil pressure mechanism is connected with a tamper body, and the lower end of the tamper body 2 is connected with a tamper.

[0015] Further, the adjusting mechanism includes a pressure sensor arranged above the oil pressure mechanism, which is used to collect the impact force during the work of the tamper and convert it into a pressure signal; the pressure sensor is connected with a pressure transmitter, which transmits the pressure signal to a signal processing device; the signal processing device is used to invert the mechanical properties of the track bed and calculate the oil pressure corresponding to the optimal clamping size of the tamper.

[0016] Further, the tamper includes tamper side plates arranged on both sides, and a piston rod connected with the tamper side plates in the internal oil cavity of the tamper; one side of the oil cavity is provided with an oil injection hole in communication with the oil pressure mechanism, and the periphery of the oil cavity is provided with a sealing cavity.

[0017] The present application has the beneficial effects that: the contact area between the tamper and the ballast bed at the clamping stage is increased, the ballast bed compactness is effectively improved, the ballast bed mechanical state is improved, and the service performance of the track after maintenance is ensured, the tampering operation effect is good; the disturbance and damage of the indirect contact force chain between the ballast between the sleepers by the tamper shoe during the extraction of the tamper are effectively avoided, the mechanical properties of the ballast after the tampering operation are effectively improved, and the service performance of the track after maintenance is improved; the contact area between the tamper and the ballast at the insertion stage is reduced, the insertion resistance of the tamper is reduced, the tampering operation can be carried out smoothly, manual loosening operation before the tampering operation is not needed, and the tampering operation efficiency is improved; the size of the tamper shoe can be automatically adjusted according to different mechanical properties of the ballast, the maintenance and repair effect of the tampering operation on the ballast with different mechanical properties is effectively improved, and the differentiated tampering is realized.

[0018] Additional aspects and advantages of the present application will be described in the following description, which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 A self-stretching intelligent tamper three-dimensional structure diagram is described in the embodiments of the present application.

[0021] Figure 2 A front view structure diagram of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0022] Figure 3 A side view structure diagram of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0023] Figure 4 A tamper shoe cross-sectional structure diagram of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0024] Figure 5 An expanded state diagram of the tamper shoe of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0025] Figure 6 A retracted state diagram of the tamper shoe of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0026] Figure 7 A tampering operation flowchart of the self-stretching intelligent tamper is described in the embodiments of the present application.

[0027] Figure 8Structure diagram of the self-stretching intelligent tamper regulation mechanism.

[0028] Wherein: 1- tamper head; 2- tamper body; 3- oil pressure mechanism; 4- regulation mechanism; 5- connecting frame; 6- tamper head side plate; 7- oil injection hole; 8- oil cavity; 9- piston rod; 10- sealing cavity; 11- pressure sensor; 12- pressure transmitter; 13- signal processing device; 14- signal transmission device; 15- oil pressure pipe. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with the drawings are exemplary and are only used to explain the present application, and cannot be interpreted as a limitation on the present application.

[0030] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as that generally understood by those skilled in the art to which the present application belongs.

[0031] It should also be understood that terms such as those defined in a general dictionary should be understood to have meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as such.

[0032] Those skilled in the art can understand that, unless otherwise stated, the singular forms "a", "an" and "the" used herein also include the plural forms. It should be further understood that the use of the phrase "comprising" in the specification of the present application means that the features, integers, steps, operations, elements and / or groups thereof are present, but not excluding the presence or addition of one or more other features, integers, steps, operations, elements and / or groups thereof.

[0033] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0034] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this specification, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this technology.

[0036] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of these terms in this art according to the specific circumstances.

[0037] To facilitate understanding of the present invention, the present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. However, the specific embodiments do not constitute a limitation on the embodiments of the present invention.

[0038] Those skilled in the art should understand that the accompanying drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily essential for implementing the present invention.

[0039] like Figures 1 to 6 As shown, this embodiment provides a self-extending intelligent tamping pick for ballast tracks in railways, such as... Figure 1 As shown, the self-retracting intelligent tamping pick includes a connecting frame 5 at the top, which connects tamping devices and tamping vehicles in different directions. The lower end of the connecting frame 5 is connected to an adjustment mechanism 4, which adjusts the hydraulic pressure provided by the hydraulic mechanism 3 according to the degree of dirtiness and mechanical state of the track bed, allowing the self-retracting intelligent tamping pick to extend to its optimal working size. In this embodiment, the adjustment mechanism 4 mainly uses the resistance of the track bed encountered by the tamping pick during the insertion stage, and uses intelligent algorithms such as the YOLOv5 network to invert the mechanical performance state of the track bed, and uses this as a basis to determine the tamping pick's extension size. Specifically, by adjusting the output hydraulic pressure of the hydraulic system based on the optimal tamping pick extension size calculated by the adjustment mechanism 4 according to different track bed mechanical performance states, the degree of tamping pick extension is controlled. For example, Figure 8As shown, the tamper penetrates into the ballast bed and is subjected to the upward reaction force of the ballast, which is closely related to the compaction degree and vertical deformation resistance of the ballast bed. Therefore, the impact force of the ballast on the tamper can effectively reflect the mechanical properties of the ballast bed. The force of the ballast on the tamper is transmitted to the pressure sensor 11 in the adjusting mechanism 4, and then the pressure sensor 11 converts the impact force F into a pressure signal and transmits it to the signal processing device 13 in the adjusting mechanism 4 through the pressure transmitter 12. Then the signal processing device 13 uses intelligent algorithms such as YOLOv5 network to invert the mechanical property state of the ballast bed, calculates the oil pressure corresponding to the optimal clamping size of the tamper, and adjusts the output of the oil pressure of the oil pressure pipe 15 through the signal transmission device 14.

[0040] The lower end of the adjusting mechanism 4 is connected to the oil pressure mechanism 3, which transmits oil pressure through the hydraulic oil pipe (i.e. oil pressure pipe 15) inside the tamper body to provide oil pressure for the self-extending intelligent tamper. The lower end of the oil pressure mechanism 3 is connected to the tamper body 2, and the lower end of the tamper body 2 is connected to the tamper head 1.

[0041] In this embodiment, the tamper head 1 is connected to the adjusting mechanism 4 through the tamper body 2, and the adjusting mechanism 4 is connected to the oil pressure mechanism 3. Figure 4 As shown, the structure of the tamper head 1 includes tamper side plates 6 on both sides. The inner oil cavity 8 of the tamper head 1 is connected to the piston rod 9, and the oil cavity 8 is connected to the oil injection hole 7 of the oil pressure mechanism. The oil cavity 8 is surrounded by a sealing cavity 10, which plays a sealing role. In this embodiment, the expansion process of the telescopic tamper head is as follows: the oil pressure mechanism 3 fills the hydraulic oil into the oil cavity 8 through the hydraulic oil pipe and the oil injection hole 7, so that a pressure difference is formed between the oil cavity 8 and the sealing cavity 10. The piston rod 9 is pushed by atmospheric pressure, and the tamper side plate 6 is gradually pushed out by the piston rod 9. The expansion and folding diagrams of the self-extending intelligent tamper head are shown in Figure 5 、 Figure 6 As shown.

[0042] This embodiment optimizes the existing tamping operation mode to cooperate with the use of the above device, and develops an optimized tamping operation process. The operation process is as follows Figure 7The preparation stage is shown in the figure. The closed operation line is prepared, and then the tamping vehicle is put on the track and the automatic telescopic tamper is ensured to be in the retracted state. In the tamping operation stage, first, the track is lifted and the track is operated; then the tamper in the retracted state is inserted into the inter-sleeper track bed; after the tamper is inserted into the predetermined operation position, the automatic adjusting device is used to determine the expansion size of the tamper, and then the oil pressure mechanism is used to provide oil pressure to expand the automatic telescopic tamper; after the tamper is expanded, the tamper performs the clamping movement facing the sleeper; and finally, the tamper is retracted, and the tamper is separated from the inter-sleeper track bed, and the complete operation process of one tamping is completed. In this mode, in the insertion stage, the contact area between the tamper bucket and the track bed is reduced, the tamping operation can be smoothly expanded, manual loosening operation is avoided, and the tamping operation efficiency is improved; in the clamping stage, the contact area between the tamper bucket and the track bed is increased, the compactness of the sleeper bottom track bed is increased, the good service state of the line after maintenance is ensured, and the tamping operation effect is improved; in the separation stage, the contact area between the tamper bucket and the track bed is reduced, the interaction between the end of the tamper and the ballast is avoided, and the influence of the separation stage of the tamper on the mechanical properties of the track bed is reduced.

[0043] In summary, the intelligent tamper described in the embodiment of the application can increase the contact area between the tamper and the sleeper bottom track bed in the clamping stage through the expansion behavior of the tamper before the clamping stage, effectively improve the compactness of the sleeper bottom, improve the mechanical state of the sleeper bottom, and further ensure the good service performance of the line after maintenance, so that the tamping operation effect is good. The disturbance and damage of the tamper bucket to the indirect contact force chain between the inter-sleeper ballast can be effectively avoided, the mechanical properties of the track bed after tamping operation can be effectively improved, and the service performance of the line after maintenance can be improved. Through the retraction behavior of the tamper bucket before the insertion stage, the contact area between the tamper and the track bed in the insertion stage is reduced, the insertion resistance of the tamper is reduced, the tamping operation can be smoothly carried out, manual loosening operation before tamping operation is not required, and the tamping operation efficiency is improved. The size of the tamper bucket can be automatically adjusted according to different mechanical properties of the track bed, the maintenance and repair effect of the tamping operation on different mechanical state track beds can be effectively improved, and differential tamping can be realized.

[0044] Although the specific embodiments of the application are described above with reference to the accompanying drawings, the application is not limited to the scope of the application. Those skilled in the art should understand that various modifications or variations of the disclosed technical solutions can be made without creative labor, and all should be covered within the protection scope of the application.

Claims

1. A self-retracting intelligent tamper, characterized in that, The utility model relates to a self-extendable intelligent tamper device and tamper vehicle, comprising: a connecting frame at the top end for connecting different direction tamper devices and tamper vehicles; an adjusting mechanism connected to the lower end of the connecting frame for adjusting the oil pressure provided by the oil pressure mechanism according to the degree of contamination and the mechanical state of the track bed, so that the self-extendable intelligent tamper bucket shoe is expanded to the optimal working size; an oil pressure mechanism connected to the lower end of the adjusting mechanism for transmitting oil pressure to provide oil pressure to the self-extendable intelligent tamper bucket shoe; a tamper body connected to the lower end of the oil pressure mechanism, and a tamper shoe connected to the lower end of the tamper body; the adjusting mechanism comprises a pressure sensor arranged above the oil pressure mechanism, which is used to collect the impact force during the work of the tamper and convert it into a pressure signal; the pressure sensor is connected to a pressure transmitter, which transmits the pressure signal to a signal processing device; the signal processing device is used to invert the mechanical performance state of the track bed and calculate the oil pressure corresponding to the optimal clamping size of the tamper; the tamper shoe comprises tamper shoe side plates arranged on both sides, a piston rod connected to the tamper shoe side plates in the internal oil cavity of the tamper shoe, an oil injection hole in communication with the oil pressure mechanism arranged on one side of the oil cavity, and a sealing cavity arranged around the oil cavity.

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