Auxiliary device for disassembling and assembling center pin bush of subway train

Abstract

The utility model relates to an auxiliary device for dismounting and mounting a center pin bush of a subway train, which comprises a bottom plate matched with a lifting trolley and supported on the lifting trolley; the mounting base surface is arranged on the bottom plate through the stand column, and a lifter mounting position, a first through hole and a second through hole are formed in the mounting base surface; the lifter, the lead screw and the lifting nut are arranged on the lifter mounting position, the output shaft penetrates through the first through hole to be coaxially connected with one end of the lead screw and drives the lead screw to rotate, the other end of the lead screw is fixed to the bottom plate through a bearing, and the lifting nut is arranged on an external thread on the lead screw in a sleeving mode and meshed with the external thread; the guide columns penetrate through the second through holes, one ends of the guide columns are connected with the lower supporting plate, the other ends of the guide columns are connected with the upper supporting plate, and the lower supporting plate is fixedly connected with the lifting nut; and the center pin supporting base is arranged on the upper surface of the upper supporting plate. Compared with the prior art, the utility model has the advantages of high reliability and the like.

Description

Technical Field

[0001] The utility model relates to the field of subway vehicle maintenance, in particular to an auxiliary device for disassembling and assembling the center pin sleeve of a subway train. Background Technique

[0002] During the daily maintenance of the train, when it is confirmed that the center pin sleeve on the bogie needs to be replaced, the operator needs to transport the center pin sleeve to the working position to be replaced. In the process of disassembly and installation, the operator can only use the lifting trolley to lift the center pin. When the height is not enough, it is necessary to add pads to increase the lifting height, or lift it manually. This not only takes time and effort but also has safety problems.

[0003] In addition, the process of setting the center pin sleeve on the pad is also relatively cumbersome. Moreover, different height differences require different pads to be designed, which also increases the cost of material preparation. Content of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary device for disassembling and assembling the center pin sleeve of a subway train. By designing a reversely arranged elevator, it can not only adapt to a greater height but also shorten the longitudinal space requirement, improve the convenience of loading and unloading and the working space range of the staff.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] An auxiliary device for disassembling and assembling the center pin sleeve of a subway train, comprising:

[0007] A bottom plate, which is matched with the lifting trolley and supported on the lifting trolley;

[0008] An installation base surface and a column, the installation base surface is arranged on the bottom plate through the column, and the installation base surface is provided with an elevator installation position, a first through hole and a plurality of second through holes;

[0009] An elevator, a lead screw and a lifting nut, which are placed on the elevator installation position, the output shaft passes through the first through hole and is coaxially connected with one end of the lead screw to drive the lead screw to rotate, and the output shaft of the elevator is arranged towards the bottom plate direction. The other end of the lead screw is fixed on the bottom plate through a bearing, and the lifting nut is sleeved on and meshed with the external thread on the lead screw;

[0010] A lower support plate, an upper support plate and a plurality of guide columns, the guide columns pass through the second through holes, and one end is connected to the lower support plate and the other end is connected to the upper support plate. The lower support plate is fixedly connected with the lifting nut;

[0011] A center pin support base, which is arranged on the upper surface of the upper support plate.

[0012] The device further includes adjustable support bases and traction rod support plates. There are two of each of the adjustable support bases and the traction rod support plates.

[0013] The traction rod support plates are arranged on the corresponding adjustable support bases. The adjustable support bases are arranged on the upper surface of the upper support plate, and the two adjustable support bases are respectively located on both sides of the central pin support base.

[0014] The cross-section of the lower support plate in the horizontal direction is axially symmetric.

[0015] There are four guide posts in total. The lower support plate is obtained by cutting a rectangular plate in the length and width directions. Among them:

[0016] Two first hollow areas are cut inward in the length direction of the rectangular plate, and two second hollow areas are cut inward in the width direction of the rectangle. The shapes of the two first hollow areas are the same, and the shapes of the two second hollow areas are the same.

[0017] And the widths of all the hollow areas gradually decrease from the outside to the inside of the rectangular plate.

[0018] The depth of the second hollow area is greater than the depth of the first hollow area, and the area of the first hollow area is equal to the area of the second hollow area.

[0019] The lift is a manual lift.

[0020] The lift includes a lift adjustment handwheel and a bevel gear set composed of a first bevel gear and a second bevel gear. The first bevel gear is sleeved on the output shaft, and the second bevel gear meshes with the first bevel gear and is sleeved on the rotating shaft of the lift adjustment handwheel.

[0021] The lift and the lead screw are integrally formed.

[0022] Compared with the prior art, the present utility model has the following beneficial effects:

[0023] 1. By designing a lift with a reverse setting, it is possible to shorten the longitudinal space requirement while achieving a greater height adaptation, improving the convenience of loading and unloading and the working space range of the staff.

[0024] 2. Through the specially designed lower support plate, the area of the first hollow area is equal to the area of the second hollow area, which can provide more balanced support during the lifting process, maintain stability in a relatively narrow space, and improve the safety of the operation.

[0025] 3. Using manual lifting has higher reliability. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present utility model;

[0027] Figure 2 is a schematic diagram of the use state;

[0028] Wherein: 1. Central pin support base, 2. Tractive rod support plate, 3. Adjustable support base, 4. Upper support plate, 5. Tractive rod height adjustment handwheel, 6. Guide post, 7. Installation base surface, 8. Lift, 9. Lift adjustment handwheel, 10. Lower support plate, 11. Lift nut, 12. Lift trolley, 13. Central pin sleeve, 14. Tractive rod. Specific embodiments

[0029] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0030] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "proximal", "distal", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Physical quantities in the formulas, if not separately marked, should be understood as the basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0032] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The following will describe in detail some embodiments of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0035] An auxiliary device for disassembling and assembling the center pin sleeve of a subway train, as Figure 1 and Figure 2 shown, includes:

[0036] A bottom plate, which cooperates with the lifting trolley and is supported on the lifting trolley;

[0037] An installation base surface 7 and a column. The installation base surface 7 is arranged on the bottom plate through the column, and an elevator installation position, a first through hole, and a plurality of second through holes are provided on the installation base surface 7;

[0038] An elevator 8, a lead screw, and a lifting nut 11 are placed on the elevator installation position. The output shaft passes through the first through hole and is coaxially connected to one end of the lead screw to drive the lead screw to rotate. The output shaft of the elevator 8 is arranged towards the bottom plate direction, and the other end of the lead screw is fixed to the bottom plate through a bearing. The lifting nut 11 is sleeved and meshed with the external thread on the lead screw;

[0039] A lower support plate 10, an upper support plate 4, and a plurality of guide columns 6. The guide columns 6 pass through the second through holes, and one end is connected to the lower support plate 10 and the other end is connected to the upper support plate 4. The lower support plate 10 is fixedly connected to the lifting nut 11;

[0040] A center pin support base 1 is arranged on the upper surface of the upper support plate 4.

[0041] By designing the elevator 8 with a reverse setting, it is possible to achieve a greater height adaptation while shortening the longitudinal space requirement, improving the convenience of loading and unloading and the working space range of the staff.

[0042] In some embodiments, the device further includes two adjustable support bases 3 and two traction rod support plates 2.

[0043] The traction rod support plate 2 is provided on the corresponding adjustable support base 3, and the adjustable support base 3 is provided on the upper surface of the upper support plate 4, and the two adjustable support bases 3 are respectively located on both sides of the center pin support base 1.

[0044] Specifically, the adjustable support base 3 also uses the screw-nut method to lift and lower, and the driving source is the traction rod height adjustment handwheel 5.

[0045] Generally, the horizontal cross-section of the lower support plate 10 is axially symmetric. In this embodiment, there are four guide posts 6 in total. The lower support plate 10 is obtained by cutting a rectangular plate in the length and width directions. Among them:

[0046] Two first hollow areas are cut inward in the length direction of the rectangular plate, and two second hollow areas are cut inward in the width direction of the rectangle. The shapes of the two first hollow areas are the same, and the shapes of the two second hollow areas are the same.

[0047] And the widths of all the hollow areas gradually decrease from the outside to the inside of the rectangular plate.

[0048] The depth of the second hollow area is greater than that of the first hollow area, and the areas of the first hollow area and the second hollow area are equal.

[0049] Through the specially designed lower support plate 10, the areas of the first hollow area and the second hollow area are equal, which can provide more balanced support during the lifting process, can maintain stability in a relatively narrow space, and improve the safety of the operation.

[0050] In addition, in this embodiment, the elevator 8 is a manual elevator. Specifically, the elevator 8 includes a lifting adjustment handwheel 9 and a bevel gear set composed of a first bevel gear and a second bevel gear. The first bevel gear is sleeved on the output shaft, and the second bevel gear meshes with the first bevel gear and is sleeved on the rotating shaft of the lifting adjustment handwheel 9.

[0051] In addition, in this embodiment, the elevator 8 and the screw rod are integrally formed.

[0052] This application utilizes the characteristics of the elevator with a lead screw nut structure that can achieve lifting and self-locking, integrates the support tooling for the center pin on the installation base surface 7 of the elevator 8, and at the same time, the elevator 8 used acts in the opposite direction, so that the space above the elevator 8 can be further released, facilitating other operations by the staff. The lead screw and the lifting nut 11 are connected to the lower support plate 10. By shaking the lifting adjustment handwheel 9, the lifting nut 11 will drive the lower support plate 10 to move up and down along the guide post 6. At the same time, in order to connect other components of the bogie to the center pin bushing, lifting structures are also provided on both sides of the upper support plate, facilitating the adjustment of the height of other components and facilitating the installation by the operators. This form of auxiliary tooling facilitates the operation of the on-site operators, reduces safety risks, and improves work efficiency.

[0053] During the operation, the center pin bushing 13 is placed on the center pin support base 1. The lifting function of the elevator 8 can lift the center pin bushing 13 to a suitable height. Due to the relatively complex on-site operation environment, it is usually used in conjunction with the lifting trolley 12. When the height of the lifting trolley 12 is insufficient to meet the operation requirements, the lifting function of this application can be used to increase the lifting height. The main feature of the device of this application is to utilize the function of the elevator 8 with a lead screw structure that can lift and self-lock, operate at the bottom of the train, and lift the center pin bushing 13 to a suitable height without adding redundant self-locking mechanisms, nor worrying about the elevator 8 failing and causing the support platform to descend by itself. The elevator itself has a stable self-locking structure, which also increases safety. The lifting structures provided on both sides of the upper support plate 10 also complete the lifting by using the principle of lead screw lifting. At the same time, the traction rod support plate 2 is also provided with a structure to prevent self-rotation, which can keep it in the same direction and stable during the lifting process. This application fully considers the diversity of the on-site operation environment, and is used in conjunction with other tools, making the operation process more convenient and fast, reducing the labor intensity, and reducing the risk of safe operation.

Claims

1. An auxiliary device for disassembling and assembling the center pin sleeve of a subway train, characterized in that, Comprising: A bottom plate, which cooperates with the lifting trolley and is supported on the lifting trolley; An installation base surface (7) and a column, the installation base surface (7) is arranged on the bottom plate through the column, and the installation base surface (7) is provided with a lift installation position, a first through hole and a plurality of second through holes; A lift (8), a lead screw and a lifting nut (11), which are placed on the lift installation position, the output shaft passes through the first through hole and is coaxially connected to one end of the lead screw to drive the lead screw to rotate, and the output shaft of the lift (8) is arranged towards the bottom plate direction, the other end of the lead screw is fixed on the bottom plate through a bearing, and the lifting nut (11) is sleeved on the external thread of the lead screw and meshes; A lower support plate (10), an upper support plate (4) and a plurality of guide columns (6), the guide columns (6) pass through the second through holes, and one end is connected to the lower support plate (10) and the other end is connected to the upper support plate (4), and the lower support plate (10) is fixedly connected to the lifting nut (11); A center pin support base (1), which is arranged on the upper surface of the upper support plate (4).

2. The auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 1, wherein The device further includes adjustable support bases (3) and traction rod support plates (2), and there are two adjustable support bases (3) and traction rod support plates (2) respectively; The traction rod support plate (2) is arranged on the corresponding adjustable support base (3), and the adjustable support base (3) is arranged on the upper surface of the upper support plate (4), and the two adjustable support bases (3) are respectively located on both sides of the center pin support base (1).

3. An auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 1, characterized in that, The cross-section of the lower support plate (10) in the horizontal direction is axially symmetric.

4. The auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 3, wherein There are four guide columns (6) in total, and the lower support plate (10) is obtained by cutting a rectangular plate in the length and width directions, where: Two first hollow areas are cut inward in the length direction of the rectangular plate, and two second hollow areas are cut inward in the width direction of the rectangle. The shapes of the two first hollow areas are the same, and the shapes of the two second hollow areas are the same; And the widths of all the hollow areas gradually decrease from the outside to the inside of the rectangular plate.

5. An auxiliary device for disassembling and assembling a center pin sleeve of a subway train according to claim 4, characterized in that, The depth of the second hollow area is greater than the depth of the first hollow area, and the areas of the first hollow area and the second hollow area are equal.

6. The auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 1, wherein, The lift (8) is a manual lift.

7. The auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 6, characterized in that, The lift (8) includes a lift adjustment handwheel (9) and a bevel gear set composed of a first bevel gear and a second bevel gear. The first bevel gear is sleeved on the output shaft, and the second bevel gear meshes with the first bevel gear and is sleeved on the rotating shaft of the lift adjustment handwheel (9).

8. An auxiliary device for disassembling and assembling the center pin sleeve of a subway train according to claim 7, characterized in that, The lift (8) and the lead screw are integrally formed.

Images