Three-sleeper tamping device

Abstract

The utility model relates to the technical field of tamping devices, in particular to a three-pillow tamping device, which comprises a pickaxe arm and a sealing structure, the sealing structure comprises a copper sleeve, a pressure-bearing disc and a rotary Glyd ring, the copper sleeve and the pressure-bearing disc are arranged between a box body and the pickaxe arm, and the rotary Glyd ring is arranged in the box body. And the rotary Glyd ring is assembled in the groove of the pressure-bearing disc, and the rotary Glyd ring and the groove of the pressure-bearing disc are sleeved on the copper sleeve provided with the space ring. The pickaxe arm is sealed by rotating the Glyd ring, and due to the fact that the Glyd ring is of a flexible structure, the Glyd ring can be easily assembled on the open groove in the pressure bearing disc, and the sealing performance is better; the size of the rotary glyd ring is smaller than that of the framework oil seal, so that the space ring and the copper sleeve do not need to be processed into a step shape, and the processing difficulty and cost are reduced; the inner and outer pickaxe arms are symmetrically distributed relative to the joints of the inner and outer pickaxe arms and the box body, unbalance loading force is avoided during working, sealing is not affected, and the average service life of the pickaxe arms is longer.

Description

Technical Field

[0001] This utility model relates to the field of tamping device technology, and in particular to a three-pillow tamping device. Background Technology

[0002] The tamping device is a core piece of equipment in railway track maintenance, primarily used to enhance track stability. Its working principle involves using vibration, impact, or pressure to rearrange and compact the ballast at the bottom of the sleepers, thereby improving the track's load-bearing capacity and smoothness. Because the tamping device operates under constant vibration and impact conditions, its sealing performance directly affects its service life and operational accuracy.

[0003] Existing seals, such as Chinese Patent Publication No. CN115539639A, a novel sealing method for the arm of a tamping device, use a skeleton oil seal for sealing. Due to the size of the skeleton oil seal, the contact surface between the spacer and the skeleton oil seal needs to be made wider. This requires the spacer and the copper sleeve to be installed with a step fit, which not only increases the processing difficulty but also increases the cost. Moreover, since the skeleton oil seal is not a flexible structure, a certain amount of space needs to be reserved during assembly, which will affect its overall sealing performance. Utility Model Content

[0004] This invention solves the problems in related technologies and proposes a three-pillow tamping device. It seals the pick arm by rotating a Gladius ring. Because it is a flexible structure, it is easy to assemble into the groove on the pressure plate, resulting in better sealing. Moreover, since the size of the rotating Gladius ring is smaller than that of the skeleton oil seal, the spacer and the copper sleeve do not need to be processed into a stepped shape, reducing the difficulty and cost of processing. The inner and outer pick arms are symmetrically distributed relative to their connection with the box body, so there is no eccentric load during operation, which will not affect the sealing. In addition, the average service life of the pick arms is longer.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a three-pillow tamping device, including a pick arm and a sealing structure, wherein the sealing structure includes a copper sleeve, a pressure plate and a rotating glyph, the copper sleeve and the pressure plate are installed between the housing and the pick arm, and the rotating glyph is fitted into the groove of the pressure plate and together they are fitted onto the copper sleeve with a spacer ring.

[0006] As a preferred embodiment, the pick arm includes an outer pick arm and an inner pick arm, wherein the outer pick arm is symmetrically distributed with respect to its connection with the box body, and the inner pick arm is symmetrically distributed with respect to its connection with the box body.

[0007] As a preferred embodiment, both the outer pick arm and the inner pick arm are hinged to the housing via pins.

[0008] As a preferred embodiment, the two sides of the housing are slidably mounted on guide posts, and the two guide posts are connected by a crossbeam.

[0009] As a preferred embodiment, the center distance of the crossbeams is 630mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model seals the pick arm by rotating the Glyd ring. Because it is a flexible structure, it is easy to assemble into the groove on the pressure plate, resulting in better sealing. Moreover, since the size of the rotating Glyd ring is smaller than that of the skeleton oil seal, the spacer and the copper sleeve do not need to be processed into a stepped shape, reducing the difficulty and cost of processing. The inner and outer pick arms are symmetrically distributed relative to their connection with the box, so there is no off-center load during operation, which will not affect the sealing. In addition, the average service life of the pick arm is longer. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the pickaxe arm sealing structure of this utility model;

[0012] Figure 2 This is the front view of this utility model;

[0013] Figure 3 This is a side view of the present invention;

[0014] Figure 4 This is a bottom view of the present invention.

[0015] In the picture:

[0016] 1. Copper sleeve, 2. Spacer ring, 3. Pressure plate, 4. Housing, 5. Rotating glyph, 6. Outer pick arm, 7. Inner pick arm, 8. Pin, 9. Guide post, 10. Crossbeam. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0020] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0021] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0023] like Figures 1 to 4 As shown, a three-pillow tamping device includes a pick arm and a sealing structure. The sealing structure includes a copper sleeve 1, a pressure plate 3, and a rotating glyph 5. The copper sleeve 1 and the pressure plate 3 are installed between the housing 4 and the pick arm. The rotating glyph 5 is fitted into the groove of the pressure plate 3 and then together they are fitted onto the copper sleeve 1, which is fitted with a spacer 2. The rotating glyph 5 is made of flexible material and is small in size, making it easy to fit into the groove of the pressure plate 3 and providing better sealing. Moreover, since the size of the rotating glyph 5 is smaller than that of the skeleton oil seal, the spacer and the copper sleeve do not need to be processed into a stepped shape, reducing the difficulty and cost of processing.

[0024] In one embodiment, the pick arm includes an outer pick arm 6 and an inner pick arm 7. The outer pick arm 6 is symmetrically distributed with respect to its connection with the housing 4, and the inner pick arm 7 is symmetrically distributed with respect to its connection with the housing 4. During operation, there is no off-center load, which does not affect its sealing, and the average service life of the pick arm is longer.

[0025] In one embodiment, both the outer pick arm 6 and the inner pick arm 7 are hinged to the housing 4 via pins 8.

[0026] In one embodiment, the two sides of the housing 4 are slidably mounted on the guide posts 9 via copper sleeves 1, and the two guide posts 9 are connected by a crossbeam 10, with a center distance of 630mm between the crossbeams 10.

[0027] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A three-pillow tamping device, comprising a pick arm and a sealing structure, wherein the sealing structure comprises a copper sleeve (1) and a pressure plate (3), the copper sleeve (1) and the pressure plate (3) being installed between a housing (4) and the pick arm, characterized in that: It also includes a rotating glyph (5), which is fitted into the groove of the pressure plate (3) and together fitted onto the copper sleeve (1) with the spacer (2).

2. The three-pillow tamping device according to claim 1, characterized in that: The pick arm includes an outer pick arm (6) and an inner pick arm (7). The outer pick arm (6) is symmetrically distributed with respect to its connection with the box (4), and the inner pick arm (7) is symmetrically distributed with respect to its connection with the box (4).

3. The three-pillow tamping device according to claim 2, characterized in that: Both the outer pick arm (6) and the inner pick arm (7) are hinged to the housing (4) by a pin (8).

4. The three-pillow tamping device according to claim 1, characterized in that: The two sides of the box (4) are slidably mounted on the guide posts (9) and the two guide posts (9) are connected by a crossbeam (10).

5. The three-pillow tamping device according to claim 4, characterized in that: The center distance of the crossbeam (10) is 630mm.

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