Tamping pickaxe for slowing down crushing of railway ballast

Abstract

The utility model discloses a tamping pickaxe for slowing down the crushing of railway ballast, which relates to the field of railway engineering, and comprises a tamping rod and a pickaxe head which are connected with each other, one end of the pickaxe head far away from the tamping rod is provided with a protective layer, the protective layer is detachably connected with the pickaxe head, the pickaxe head comprises a widening part, a connecting part and a tamping part which are connected in sequence, the widened part is connected with the tamping rod, and the protective layer is arranged on the tamping part; the problem that an existing tamping pickaxe is short in service life due to the fact that the tamping pickaxe is prone to abrasion is solved.

Description

Technical Field

[0001] This utility model relates to the field of railway engineering, specifically to a tamping pick for mitigating ballast breakage. Background Technology

[0002] Ballasted track is the longest operational railway track structure in my country, offering advantages such as low cost, good flexibility, and ease of construction and maintenance. However, as a loose-body ballast bed, ballasted track suffers from deterioration under long-term train impact loads, including ballast breakage, pulverization, and uneven settlement. This alters the track's geometry, reduces its mechanical properties, and ultimately affects train operation safety. To ensure stable train operation and restore the ballast's mechanical properties, track maintenance is necessary.

[0003] Currently, large tamping machines are mainly used for the maintenance and repair of ballasted tracks. Tamping operations are carried out by tamping picks. The vibration of the pick's hand generates a vibration force on the ballast, causing the ballast to move to a more stable position and making the ballast under the sleepers more compact. Most existing tamping picks are flat-headed tamping picks, which have a limited size of pick hand and a limited number of ballast pieces they can hold. During the tamping process, friction with the ballast causes significant wear and breakage of the pick hand on the ballast, shortening the track maintenance cycle. In addition, the pick head is prone to wear, reducing the service life of the tamping pick and making it a consumable part in the maintenance and repair of ballasted tracks. Utility Model Content

[0004] This invention provides a tamping pick that reduces ballast breakage, thereby solving the problems of severe wear and breakage of ballast caused by existing tamping picks and short service life due to easy wear of the pick handle.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A tamping pick for mitigating ballast breakage includes a tamping rod and a pick head connected to each other. The end of the pick head away from the tamping rod is provided with a protective layer, which is detachably connected to the pick head. The pick head includes a widening section, a connecting section, and a tamping section connected in sequence. The widening section is connected to the tamping rod, and the protective layer is disposed on the tamping section.

[0007] This invention prevents wear on the tamping pick by providing a detachable protective layer on the pick head. When the tamping pick is used for maintenance of ballasted tracks, the protective layer contacts and rubs against the ballast. Once the protective layer has worn down to a certain extent, it can be removed and replaced with a new one, thus protecting the tamping pick body and extending its service life. Furthermore, by using the protective layer instead of the tamping pick as a consumable part, maintenance costs are reduced. The widened section connects the pick head to the tamping rod, and the width of the pick head is determined by the widened section. The length and shape of the pick head are determined by the connecting section and the tamping section, increasing the clamping area of ​​the pick and reducing wear and breakage of the ballast, thereby extending the track bed maintenance cycle.

[0008] Furthermore, the pick also includes a first wedge-shaped portion disposed at the end of the tamping part away from the tamping rod, wherein the end of the first wedge-shaped portion away from the tamping part is provided as an arc surface.

[0009] By setting the first wedge-shaped part as an arc surface, the clamping surface of the pick head is increased, resulting in a larger relative clamping area. This allows for the simultaneous clamping of more ballast during the tamping process, improving tamping efficiency and making the track bed more compact.

[0010] Furthermore, one end of the tamping part is provided with a second wedge-shaped part, and the tamping rod is connected to the end of the widened part away from the second wedge-shaped part.

[0011] This design sets the tamping pick as a semi-handled structure. The second wedge-shaped part reduces the contact area between the pick head and the ballast, making it easier for the pick to tamp into the track bed. This reduces the stress on the ballast particles, effectively reducing ballast breakage caused by tamping and helping to extend the track bed maintenance cycle. At the same time, the overall design of the pick head as a semi-handled structure meets the usage requirements of large track maintenance machinery tamping vehicles.

[0012] Furthermore, both ends of the tamping section are provided with second wedge-shaped portions, and the tamping rod is installed on the central axis of the widened section.

[0013] This design sets the tamping pick to a full-hand structure. The second wedge-shaped part reduces the contact area between the pick head and the ballast on both sides, making it easier for the tamping pick to penetrate the track bed. The stress on the ballast particles is reduced, effectively reducing ballast breakage caused by tamping and helping to extend the track bed maintenance cycle. At the same time, the entire pick head is a full-hand structure, which meets the usage requirements of large track maintenance machinery tamping vehicles.

[0014] Furthermore, the protective layer is disposed on the first wedge-shaped portion and the second wedge-shaped portion.

[0015] Furthermore, the first wedge-shaped portion is connected to the second wedge-shaped portion. This makes the side of the pick that contacts the ballast a continuous surface, making it easier for the pick to tamp into the track bed. The stress on the ballast particles is reduced, effectively reducing ballast breakage caused by tamping and helping to extend the track bed maintenance cycle.

[0016] Furthermore, the thickness of the connecting portion gradually decreases from the end near the widened portion toward the end near the tamping portion; the thickness of the tamping portion gradually decreases from the end near the connecting portion toward the end away from the connecting portion.

[0017] This design gives the pick a conical shape, making it easier to tamp into the track bed and reducing the stress on the ballast particles during tamping.

[0018] Furthermore, the protective layer is made of a wear-resistant material, specifically a hard alloy, which extends the service life of the protective layer.

[0019] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0020] (1) This utility model prevents the tamping pick body from being worn by setting a detachable protective layer on the tamping pick head. When the tamping pick is used to maintain and repair the ballasted track, the protective layer is used to contact and rub against the ballast. After the protective layer is worn to a certain extent, it can be removed and replaced with a new protective layer, thus protecting the tamping pick body and extending the service life of the tamping pick body. Furthermore, the protective layer replaces the tamping pick as a consumable part, reducing the cost of maintenance and repair. Moreover, by adjusting the length of the widened part, the clamping area of ​​the pick hand can be increased, reducing the wear and breakage of the ballast and extending the maintenance cycle of the track bed.

[0021] (2) By setting the first wedge part as an arc surface, the clamping surface of the pick head is increased, and the relative clamping area is larger. During the tamping process, more ballast can be clamped at the same time, improving the tamping efficiency and making the track bed more compact.

[0022] (3) The second wedge-shaped part reduces the contact area of ​​the pick head on the side that contacts the ballast, making it easier for the pick to tamp into the track bed. The ballast particles are subjected to less force, which effectively reduces ballast breakage caused by tamping and helps to extend the track bed maintenance cycle. At the same time, the pick head is a half-pick, which meets the usage requirements of large track maintenance machinery tamping vehicles.

[0023] (4) By designing the pick head as a full pick and a half pick, it meets the usage requirements of large road maintenance machinery tamping vehicles. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0025] Figure 1 This is a front view of the structure of the all-pick tamping pick in this utility model;

[0026] Figure 2 This is a front view of the half-hammer tamping pick structure in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the all-pick tamping pick in this utility model;

[0028] Among them, 1-tamping rod, 2-widening part, 3-connecting part, 4-tamping part, 5-first wedge-shaped part, 6-second wedge-shaped part. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] Example

[0032] This embodiment provides a tamping pick to slow down ballast breakage, such as Figure 1-3 As shown, it includes a tamping rod 1 and a pick head connected to each other. The pick head is characterized in that a protective layer is provided at the end away from the tamping rod 1, and the protective layer is detachably connected to the pick head. The pick head includes a widening part 2, a connecting part 3 and a tamping part 4 connected in sequence. The widening part 2 is connected to the tamping rod 1, and the protective layer is disposed on the tamping part 4.

[0033] The tamping rod 1 is connected to the large tamping machine by means of pin connection or key connection, etc. The protective layer is made of wear-resistant material, preferably hard alloy. The detachable connection between the protective layer and the tamping head can be bolt connection, pin connection, etc. The size of the protective layer is equal to the size of the contact area between the tamping tamping pick and the ballast when working. The shape of the widening part 2 can be any column, preferably a cuboid structure. The widening part 2 and the tamping rod 1 are connected by key connection, pin connection or directly integrally formed by mold. The widening part 2, the connecting part 3 and the tamping part 4 are preferably integrally formed by mold.

[0034] In a more preferred embodiment, the pick further includes a first wedge-shaped portion 5 disposed at the end of the tamping part 4 away from the tamping rod 1, wherein the end of the first wedge-shaped portion 5 away from the tamping part 4 is provided as an arc surface.

[0035] The width of the first wedge 5 is determined according to the requirements, and its arc surface protrudes towards the end away from the pick. The curvature is determined according to the requirements so that the first wedge 5 can better clamp the ballast.

[0036] In a more preferred embodiment, one end of the tamping part 4 is provided with a second wedge-shaped part 6, and the tamping rod 1 is connected to the end of the widened part 2 away from the second wedge-shaped part 6.

[0037] The end of the pick away from the second wedge-shaped part 6 is set as a plane, the tamping rod 1 is connected to the side of the widened part 2 near the plane, and the axis of the tamping rod 1 is parallel to the axis of the widened part 2.

[0038] In a more preferred embodiment, both ends of the tamping section 4 are provided with second wedge-shaped portions 6, and the tamping rod 1 is installed on the central axis of the widened section 2. The overall structure of the tamping pick is mirror-symmetrical from left to right.

[0039] In a more preferred embodiment, the protective layer is disposed on the first wedge-shaped portion 5 and the second wedge-shaped portion 6. The protective layer is integrally cast using the shape of the first wedge-shaped portion 5 and the second wedge-shaped portion 6 as a mold, and then fitted onto the first wedge-shaped portion 5 and the second wedge-shaped portion 6.

[0040] In a more preferred embodiment, the first wedge portion 5 is connected to the second wedge portion 6.

[0041] In a more preferred embodiment, the thickness of the connecting portion 3 gradually decreases from the end near the widened portion 2 toward the end near the tamping portion 4.

[0042] In a more preferred embodiment, the thickness of the tamping portion 4 gradually decreases from the end near the connecting portion 3 to the end away from the connecting portion 3.

[0043] The tamping pick has a wedge-shaped structure, which reduces friction with the ballast and increases the strength of the pick head.

[0044] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0045] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A tamping pick for mitigating ballast breakage, comprising a tamping rod (1) and a pick head connected to each other, characterized in that, The end of the pick away from the tamping rod (1) is provided with a protective layer, and the protective layer is detachably connected to the pick. The pick includes a widening part (2), a connecting part (3) and a tamping part (4) connected in sequence. The widening part (2) is connected to the tamping rod (1), and the protective layer is disposed on the tamping part (4).

2. A tamping pick for mitigating ballast breakage according to claim 1, characterized in that, The pick also includes a first wedge-shaped part (5) disposed at the end of the tamping part (4) away from the tamping rod (1), and the end of the first wedge-shaped part (5) away from the tamping part (4) is provided as an arc surface.

3. A tamping pick for mitigating ballast breakage according to claim 2, characterized in that, One end of the tamping part (4) is provided with a second wedge-shaped part (6), and the tamping rod (1) is connected to the end of the widened part (2) away from the second wedge-shaped part (6).

4. A tamping pick for mitigating ballast breakage according to claim 2, characterized in that, The tamping part (4) has a second wedge-shaped part (6) at both ends, and the tamping rod (1) is installed on the central axis of the widened part (2).

5. A tamping pick for mitigating ballast breakage according to claim 3 or 4, characterized in that, The protective layer is disposed on the first wedge-shaped portion (5) and the second wedge-shaped portion (6).

6. A tamping pick for mitigating ballast breakage according to claim 3 or 4, characterized in that, The first wedge (5) is connected to the second wedge (6).

7. A tamping pick for mitigating ballast breakage according to claim 1, characterized in that, The thickness of the connecting part (3) gradually decreases from the end near the widened part (2) toward the end near the tamping part (4).

8. A tamping pick for mitigating ballast breakage according to claim 1, characterized in that, The thickness of the tamping part (4) gradually decreases from the end closer to the connecting part (3) toward the end farther away from the connecting part (3).

9. A tamping pick for mitigating ballast breakage according to claim 1, characterized in that, The protective layer is made of wear-resistant material.

10. A tamping pick for mitigating ballast breakage according to claim 9, characterized in that, The wear-resistant material is a cemented carbide.

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