A distribution structure of a spring set for a control valve of a railway freight car 120 type

Abstract

The application relates to a distribution structure of a spring group for a railway wagon 120 type control valve and relates to the field of auxiliary devices for mechanical assembly of railway vehicles. The distribution structure comprises a distribution seat, the upper end of which is provided with multiple partitions arranged according to the assembly area layout of the 120 type control valve. Each partition is provided with a round rod or a stepped rod, a spring is sleeved on the rod, the inner diameter of the spring is slightly larger than the outer diameter of the corresponding rod, and the springs in the partitions are respectively used for different assembly areas of the 120 type control valve. The distribution seat is preferably rectangular, the partitions are provided with five assembly surfaces of the upper and lower front assembly surfaces of the main valve and the upper and lower assembly surfaces of the semi-automatic relief valve, are distributed in the middle and four corners, and the rod body structure can prevent the spring from being confused. The distribution structure is made of ABS and is integrally formed through 3D printing, can improve the spring distribution efficiency, avoids mistakes and omissions, and is suitable for distribution of the spring group of the 120 type control valve of the railway wagon.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices for mechanical assembly of railway vehicles, specifically a delivery structure for a spring assembly of a control valve for a type 120 railway freight car. Background Technology

[0002] With the widespread use of 10,000-ton and 20,000-ton trains in railway freight car formations, the demand for speed increases and heavy loads is growing, making train operation safety particularly important. The air control unit is a core component of the railway freight car braking system, and the Type 120 control valve, as a crucial component of the air brake unit, is known as the "heart of the vehicle." It is a vital part of the railway freight car braking system, directly affecting the reliability of the braking device, and consequently impacting the safe operation of railway freight cars and the normal operation of railways. Therefore, it is essential to improve the maintenance quality of the Type 120 control valve.

[0003] The Type 120 control valve includes multiple valve sections such as a main valve, a control valve, an emergency valve, an emergency second-stage valve, a deceleration charging valve, an acceleration relief valve, a partial deceleration valve, and a semi-automatic relief valve. It also includes structures such as a stabilizing device and a handle operating mechanism. Among these, springs are important functional components in each structure of the Type 120 control valve. The Type 120 control valve uses a large number of springs of varying sizes. Specifically, the control valve spring and the stabilizing spring for the stabilizing device are located on the upper assembly surface of the main valve; the emergency valve check spring, the emergency second-stage valve spring, and the deceleration charging valve spring are located on the lower assembly surface of the main valve; the acceleration relief valve spring and the partial deceleration valve spring are located on the front assembly surface of the main valve; the main valve check spring and the semi-automatic relief valve spring are located on the upper assembly surface of the semi-automatic relief valve; and the handle operating mechanism spring is located on the lower assembly surface of the semi-automatic relief valve. Of these springs, there are two main valve check springs, and each of the other springs has one spring. Typically, when assembling a Type 120 control valve, the assembly sequence is as follows: upper assembly surface of the main valve, lower assembly surface of the main valve, front assembly surface of the main valve, upper assembly surface of the semi-automatic release valve, and lower assembly surface of the semi-automatic release valve.

[0004] Spring delivery is a crucial preparatory step in the assembly of the Type 120 control valve. It refers to the process of selecting and delivering the springs required for the assembly of the Type 120 control valve. Traditionally, spring delivery involves using ordinary boxes with springs placed together without sorting. This can lead to the following problems: Spring selection personnel and Type 120 control valve assembly personnel need to repeatedly verify the correctness of the springs, resulting in low work efficiency; due to the large variety and size of springs, mismatches, omissions, and excess springs may occur; assembly personnel may incorrectly install or omit springs; and due to the complex structure of the Type 120 valve, failure to promptly identify misinstalls or omissions could lead to safety accidents. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a distribution structure for spring assemblies of the 120-type control valve for railway freight cars, which solves the problem of errors and omissions that are prone to occur during the selection and assembly of the 120-type control valve springs.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A delivery structure for a spring assembly of a type 120 control valve for railway freight cars is provided, which includes a delivery seat. The upper end of the delivery seat is provided with multiple partitions. Each partition is vertically fixed with a round rod or a stepped rod with different diameters. Each round rod or stepped rod is fitted with a spring. The inner diameter of the spring is slightly larger than the outer diameter of the corresponding round rod. The springs corresponding to the multiple partitions are used for different assembly areas of the type 120 control valve.

[0010] Preferably, the partitions are set to five; the first partition is provided with a first-zone coarse diameter rod and a first-zone fine diameter rod from bottom to top; the second partition is provided with a second-zone coarse diameter rod, a second-zone intermediate diameter rod, and a second-zone fine diameter rod from bottom to top; the third partition is provided with a third-zone coarse diameter rod and a third-zone fine diameter rod from bottom to top; the fourth partition is provided with a fourth-zone coarse diameter rod, and fourth-zone fine diameter rods are provided on both sides of the fourth-zone coarse diameter rod; the fifth partition is provided with a fifth-zone round rod; the springs corresponding to the first, second, third, fourth, and fifth partitions are respectively used on the upper assembly surface of the main valve, the lower assembly surface of the main valve, the front assembly surface of the main valve, the upper assembly surface of the semi-automatic release valve, and the lower assembly surface of the semi-automatic release valve of the 120-type control valve.

[0011] Preferably, the first zone coarse-diameter rod and the first zone fine-diameter rod are respectively fitted with a stabilizing spring and a control valve spring for the upper assembly surface of the main valve of the 120 type control valve; the second zone coarse-diameter rod, the second zone intermediate-diameter rod, and the second zone fine-diameter rod are respectively fitted with a deceleration charging valve spring, an emergency second-stage valve spring, and an emergency valve check spring for the lower assembly surface of the main valve of the 120 type control valve; the third zone coarse-diameter rod and the third zone fine-diameter rod are respectively fitted with a partial deceleration valve spring and an acceleration relief valve spring for the front assembly surface of the main valve of the 120 type control valve; the fourth zone coarse-diameter rod and the fourth zone fine-diameter rod are respectively fitted with a semi-automatic relief valve spring and a main valve check spring for the upper assembly surface of the semi-automatic relief valve of the 120 type control valve; and the fifth zone round rod is fitted with a handle operating mechanism spring for the lower assembly surface of the semi-automatic relief valve of the 120 type control valve.

[0012] Preferably, the delivery seat is configured as a rectangular flat plate, with the second section located in the center of the delivery seat and the other sections located at the four corners of the delivery seat.

[0013] Preferably, the delivery structure is made of ABS material and is integrally formed using 3D printing technology.

[0014] (III) Beneficial Effects

[0015] This utility model provides a delivery structure for a spring assembly of a control valve for a 120-type railway freight car. It has the following beneficial effects:

[0016] By setting multiple partitions on the delivery seat and providing round rods or stepped rods with different diameters, spring fitting personnel can quickly complete the process of selecting and fitting springs onto the round rods, and judge the correctness of the spring fitting by observing the gap between the round rod and the spring. By setting multiple partitions and making each partition correspond to different assembly areas of the 120-type control valve, 120-type valve assembly personnel can complete the installation of springs in different assembly areas of the 120-type control valve in an organized and step-by-step manner, improving the accuracy and efficiency of assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention after the spring is fitted.

[0019] In the diagram, 1-delivery seat, 11-zone 1 coarse diameter rod, 12-zone 1 fine diameter rod, 21-zone 2 coarse diameter rod, 22-zone 2 medium diameter rod, 23-zone 2 fine diameter rod, 31-zone 3 coarse diameter rod, 32-zone 3 fine diameter rod, 41-zone 4 coarse diameter rod, 42-zone 4 fine diameter rod, 5-zone 5 round rod. Detailed Implementation

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model 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 the embodiments of this utility model.

[0023] Please see Figures 1-2 This utility model provides a technical solution: a delivery structure for spring assemblies of a type 120 control valve for railway freight cars. The structure includes a delivery seat 1 with multiple partitions at its upper end. Each partition has a round rod or a stepped rod with different diameters vertically fixed to it. A spring is fitted onto each round rod or stepped rod, with the inner diameter of the spring slightly larger than the outer diameter of the corresponding round rod. The springs corresponding to the multiple partitions are used in different assembly areas of the type 120 control valve. It should be noted that the slightly larger inner diameter of the spring helps the spring selection personnel identify the correctness of the selected spring by fitting it onto the corresponding round rod. Then, based on the remaining round rods without springs, the appropriate spring is selected, improving the accuracy and efficiency of spring selection. Furthermore, the use of springs corresponding to the multiple partitions in different assembly areas of the type 120 control valve helps the assembly personnel to systematically and step-by-step complete the installation of springs in different assembly areas of the type 120 control valve, improving assembly accuracy and efficiency.

[0024] Please see Figures 1-2 In this embodiment, the partitions are set to five; the first partition is provided with a first-zone coarse diameter rod 11 and a first-zone fine diameter rod 12 from bottom to top; the second partition is provided with a second-zone coarse diameter rod 21, a second-zone intermediate diameter rod 22 and a second-zone fine diameter rod 23 from bottom to top; the third partition is provided with a third-zone coarse diameter rod 31 and a third-zone fine diameter rod 32 from bottom to top; the fourth partition is provided with a fourth-zone coarse diameter rod 41, and the fourth-zone fine diameter rod 42 is provided on both sides of the fourth-zone coarse diameter rod; the fifth partition is provided with a fifth-zone round rod 5; the springs corresponding to the first, second, third, fourth and fifth partitions are respectively used on the upper assembly surface of the main valve, the lower assembly surface of the main valve, the front assembly surface of the main valve, the upper assembly surface of the semi-automatic release valve and the lower assembly surface of the semi-automatic release valve of the 120 type control valve. It should be noted that the five partitions correspond to the assembly habits of the Type 120 control valve. The usual assembly order is: upper assembly surface of the main valve, lower assembly surface of the main valve, front assembly surface of the main valve, upper assembly surface of the semi-automatic release valve, and lower assembly surface of the semi-automatic release valve. After partitioning, each partition corresponds to no more than 3 springs, which improves the identifiability of spring features, makes it easier to establish the correspondence between springs and corresponding parts of the Type 120 control valve, and improves the accuracy and efficiency of assembly.

[0025] Please see Figures 1-2 In this embodiment, the first zone coarse diameter rod 11 and the first zone fine diameter rod 12 are respectively fitted with a stabilizing spring and a control valve spring for the upper assembly surface of the main valve of the 120 type control valve; the second zone coarse diameter rod 21, the second zone intermediate diameter rod 22, and the second zone fine diameter rod 23 are respectively fitted with a deceleration charging valve spring, an emergency second-stage valve spring, and an emergency valve check spring for the lower assembly surface of the main valve of the 120 type control valve; the third zone coarse diameter rod 31 and the third zone fine diameter rod 32 are respectively fitted with a partial deceleration valve spring and an acceleration relief valve spring for the front assembly surface of the main valve of the 120 type control valve; the fourth zone coarse diameter rod 41 and the fourth zone fine diameter rod 42 are respectively fitted with a semi-automatic relief valve spring and a main valve check spring for the upper assembly surface of the semi-automatic relief valve of the 120 type control valve; and the fifth zone round rod 5 is fitted with a handle operating mechanism spring for the lower assembly surface of the semi-automatic relief valve of the 120 type control valve.

[0026] Please see Figures 1-2 In this embodiment, the delivery seat 1 is configured as a rectangular plate, with the second partition located in the center and the other partitions located at the four corners. It should be noted that the second partition corresponds to the lower assembly surface of the main valve and has relatively large and numerous springs. Positioning it in the center of the delivery seat 1 makes the center of gravity of the delivery structure more stable. Positioning the other partitions at the four corners of the rectangular plate makes the positional relationships clearer and easier for assembly personnel to establish the correspondence between each partition and the 120-type control valve assembly area.

[0027] Please see Figures 1-2 In this embodiment, the delivery structure is made of ABS material and is integrally formed using 3D printing technology. It should be noted that the use of ABS material makes it suitable for 3D printing and allows for integral molding, thus adapting to the complex structure of stepped components and improving production efficiency.

[0028] The working principle and usage process of this utility model: Using ABS material, it can be integrally molded using 3D printing technology. During use, in the spring selection stage, the selection personnel can more easily establish the correspondence between the spring and the corresponding round rod in the delivery structure based on the partitions and the arrangement of round rods or stepped rods with different diameters. The correctness of the selection can be verified by fitting the selected spring onto the corresponding round rod. If the spring diameter is too small, it cannot be fitted smoothly; if the spring diameter is too large, the gap between the spring and the round rod will increase, facilitating correction. In the assembly stage of the 120-type control valve, the assembler can establish a correspondence between the partitions of the delivery structure and the assembly area of ​​the 120-type control valve. Each partition contains up to three types of springs, and the springs have easily identifiable characteristics of different diameters, making it easy for the assembler to establish the correspondence between a specific spring and the corresponding component of the 120-type control valve, improving assembly accuracy and efficiency.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A delivery structure for a spring assembly of a control valve for a type 120 railway freight car, characterized in that, A delivery seat (1) is provided, and the upper end of the delivery seat (1) is provided with multiple partitions. Each partition is vertically fixed with a round rod or a stepped rod with different diameters. Each round rod or stepped rod is fitted with a spring. The inner diameter of the spring is slightly larger than the outer diameter of the corresponding round rod. The springs corresponding to the multiple partitions are used for different assembly areas of the 120 type control valve.

2. The delivery structure for a spring assembly of a control valve for a railway freight car type 120 according to claim 1, characterized in that, The partitions are set to five; The first section is arranged from bottom to top as a section with a coarse diameter bar (11) and a section with a fine diameter bar (12); The second section is provided with a coarse diameter rod (21), a medium diameter rod (22), and a fine diameter rod (23) from bottom to top; The third section is provided with three coarse diameter bars (31) and three fine diameter bars (32) from bottom to top; The fourth section is provided with a four-section coarse diameter rod (41), and four-section fine diameter rods (42) are provided on both sides of the four-section coarse diameter rod; The fifth section is equipped with five circular rods (5); The springs corresponding to the first, second, third, fourth, and fifth partitions are respectively used on the upper assembly surface of the main valve, the lower assembly surface of the main valve, the front assembly surface of the main valve, the upper assembly surface of the semi-automatic release valve, and the lower assembly surface of the semi-automatic release valve of the 120-type control valve.

3. The delivery structure for a spring assembly of a control valve for a railway freight car type 120 according to claim 2, characterized in that, The coarse diameter rod (11) in the first zone and the fine diameter rod (12) in the first zone are respectively fitted with a stabilizing spring and a control valve spring for the assembly surface of the main valve of the 120 type control valve; The coarse diameter rod (21), medium diameter rod (22), and fine diameter rod (23) of the second zone are respectively fitted with a deceleration air charging valve spring, an emergency second stage valve spring, and an emergency valve check spring for the lower assembly surface of the main valve of the 120 type control valve. The three-zone coarse diameter rod (31) and the three-zone fine diameter rod (32) are respectively fitted with a local reduction valve spring and an acceleration relief valve spring for the front assembly surface of the main valve of the 120 type control valve; The four-zone coarse diameter rod (41) and the four-zone fine diameter rod (42) are respectively fitted with a semi-automatic release valve spring and a main valve check spring for the assembly surface of the semi-automatic release valve of the 120 type control valve. The five-zone round rod (5) is fitted with a handle operating mechanism spring for the lower assembly surface of the semi-automatic release valve of the 120-type control valve.

4. The delivery structure for a spring assembly of a control valve for a railway freight car type 120 according to claim 2, characterized in that, The delivery seat (1) is configured as a rectangular flat plate, with the second partition located in the middle of the delivery seat (1) and the other partitions located at the four corners of the delivery seat (1).

5. The delivery structure for a spring assembly of a control valve for a railway freight car type 120 according to any one of claims 1-4, characterized in that, The delivery structure is made of ABS material and is integrally formed using 3D printing technology.

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