Auxiliary equipment for assembling central suspension device

Abstract

The utility model provides a central suspension device assembly auxiliary equipment, including bracing frame, lifting plate, drive plate, guide rod, connecting nut and adjusting screw, the upper end of bracing frame is provided with mounting platform, the middle part of lifting plate is provided with receding round hole, lifting plate is provided above mounting platform, drive plate is provided below mounting platform, guide rod is provided with connecting nut, adjusting screw, the mounting platform is provided with receding round hole. The guide rods penetrate through the mounting platform, the upper ends and the lower ends of the guide rods are fixed to the lifting plate and the driving plate respectively, the four sets of guide rods correspond to the four corners of the lifting plate, the connecting nuts are fixed to the mounting platform, the adjusting screws penetrate through the driving plate, the connecting nuts and the mounting platform, and the adjusting screws are in threaded connection with the connecting nuts. The lower ends of the adjusting screws are heads and correspond to the lower portion of the driving plate, and the two sets of adjusting screws and the two sets of connecting nuts correspond to the left side and the right side of the mounting platform correspondingly. The assembling tool has the advantages that the assembling tool can be operated by one person, the assembling is rapid and labor-saving, and the safety and the assembling precision are high.

Description

Technical Field

[0001] This utility model relates to the technical field of railway vehicle bogie systems, and in particular to an auxiliary device for assembling a central suspension device. Background Technology

[0002] According to railway industry regulations, railway passenger cars must undergo major overhauls at the factory when they reach a specified mileage or service life. Their running gear (bogies) requires detailed disassembly, inspection, and reassembly. During the assembly of the bogie's central suspension device, the hanger bolts hang naturally between the frame and the bolster. The concave and convex washers need to be lifted from below and fitted onto the hanger bolts before the open-end nuts are assembled. This process presents the following problems: high labor costs (requiring two people to work together, which is time-consuming); safety hazards (lifting heavy objects can easily cause muscle strains, and slipping washers can lead to injuries); low assembly accuracy (manual alignment is difficult, easily causing the concave and convex washers to become misaligned, affecting the stress balance of the suspension system). Therefore, it is necessary to develop an auxiliary device for assembling the central suspension device to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for assembling a central suspension device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A central suspension assembly auxiliary device includes a support frame, a lifting plate, a drive plate, guide rods, connecting nuts, and adjusting screws. The upper end of the support frame is provided with an installation platform. A clearance hole is formed in the middle of the lifting plate, which is positioned above the installation platform. The drive plate is positioned below the installation platform. The guide rods pass through the installation platform, and their upper and lower ends are fixed to the lifting plate and drive plate, respectively. Four sets of guide rods are provided, corresponding to the four corners of the lifting plate. The connecting nuts are fixed to the installation platform. The adjusting screws pass through the drive plate, connecting nuts, and installation platform, and are threadedly connected to the connecting nuts. The lower end of the adjusting screw is the head, corresponding to the lower part of the drive plate. Two sets of adjusting screws and connecting nuts are provided, corresponding to the left and right sides of the installation platform, respectively.

[0006] Further description of this utility model: The head of the adjusting screw is a hexagonal drive head.

[0007] Further description of the present invention: It also includes a supporting bottom wheel, which is fixed below the support frame, and four sets of supporting bottom wheels are provided and correspond to the four corners of the support frame.

[0008] Further description of the present invention: It also includes an anti-slip mat, which is laid on top of the lifting plate and corresponds to the outer periphery of the clearance hole.

[0009] The beneficial effects of this utility model are as follows: During the assembly of the central suspension device, the suspension bolts hang naturally between the frame and the bolster. The concave and convex washers need to be fitted onto the suspension bolts from below, and then the open nut is assembled. Using the assembly auxiliary equipment designed in this way, the central suspension device can be assembled quickly. The frame and bolster are aligned and fixed in their corresponding positions. The suspension bolts pass through the mounting holes of the frame and bolster sequentially from above. The convex washer is placed flat at the center of the lifting plate of the auxiliary equipment, and the concave washer is placed above the convex washer. The entire auxiliary device is pushed into the corresponding position below the bolster. A wrench is used to tighten two adjusting screws from below. The adjusting screws drive the lifting plate to gradually rise through the drive plate and guide rod, allowing the center holes of the concave and convex washers to fit onto the suspension bolts. The open nut is then tightened into the bottom thread of the suspension bolt from below. The lifting plate is lowered, and the entire device is pushed out to complete the installation. The advantages of this design are: it can be operated by a single person, assembly is fast and labor-saving, and it has high safety and assembly precision. Attached Figure Description

[0010] Figure 1 This is an overall structural diagram of the present invention (including the central suspension device);

[0011] Figure 2 This is an overall structural diagram of the present invention (excluding the central suspension device);

[0012] Explanation of reference numerals in the attached figures:

[0013] 01. Support frame; 011. Mounting platform; 02. Lifting plate; 021. Clearance hole; 03. Drive plate;

[0014] 04. Guide rod; 05. Connecting nut; 06. Adjusting screw; 07. Support wheel; 08. Frame; 09. Rocker; 10. Hanging rod bolt; 11. Concave washer; 12. Convex washer; 13. Open nut. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] like Figures 1 to 2As shown, an auxiliary device for assembling a central suspension device includes a support frame 01, a lifting plate 02, a drive plate 03, a guide rod 04, a connecting nut 05, and an adjusting screw 06. The upper end of the support frame 01 is provided with an installation platform 011. The lifting plate 02 has a clearance hole 021 in its middle. The lifting plate 02 is positioned above the installation platform 011, and the drive plate 03 is positioned below the installation platform 011. The guide rod 04 passes through the installation platform 011, and its upper and lower ends are fixed to the lifting plate 02 and the drive plate 03, respectively. Four sets of guide rods 04 are provided, corresponding to the four corners of the lifting plate 02. The connecting nut 05 is fixed to the installation platform 011. The adjusting screw 06 passes through the drive plate 03, the connecting nut 05, and the installation platform 011. The adjusting screw 06 and the connecting nut 05 are threadedly connected. The lower end of the adjusting screw 06 is the head, corresponding to the lower part of the drive plate 03. Two sets of both the adjusting screw 06 and the connecting nut 05 are provided, corresponding to the left and right sides of the installation platform 011, respectively.

[0017] During the assembly of the central suspension device, the suspension bolt 10 hangs naturally between the frame 08 and the bolster 09. The concave washer 11 and convex washer 12 need to be fitted onto the suspension bolt 10 from below, and then the open nut 13 is assembled. Using the assembly auxiliary equipment designed in this way, the central suspension device can be assembled quickly. The frame 08 and the bolster 09 are aligned and fixed relative to each other. The suspension bolt 10 passes through the mounting holes of the frame 08 and the bolster 09 from above. The convex washer 12 is placed flat on the lifting mechanism of the auxiliary equipment. At the center of the upper plane of plate 02, place the concave pad 11 above the convex pad 12. Push the entire auxiliary device into the corresponding position below the rocker bolster 09. Use a wrench to tighten the two adjusting screws 06 from the bottom. The adjusting screws 06 drive the lifting plate 02 to gradually rise through the drive plate 03 and guide rod 04, allowing the center holes of the concave pad 11 and convex pad 12 to fit onto the hanger bolt 10. Tighten the open nut 13 from below onto the bottom thread of the hanger bolt 10, lower the lifting plate 02, and push the entire device out to complete the installation. The advantages of this design are: it can be operated by a single person, assembly is quick and labor-saving, and it has high safety and assembly precision.

[0018] The head of the adjusting screw 06 is a hexagonal drive head, which matches the shape of a wrench, allowing the adjusting screw 06 to be easily rotated using the wrench.

[0019] This design also includes support wheels 07, which are fixed below the support frame 01. Four sets of support wheels 07 are provided, corresponding to the four corners of the support frame 01. This facilitates the movement of the entire auxiliary equipment.

[0020] This design also includes an anti-slip mat, which is laid on top of the lifting plate 02 and corresponds to the outer periphery of the clearance hole 021.

[0021] During assembly, the lateral offset of the concave pad 11 and convex pad 12 can be effectively avoided, thus improving assembly accuracy.

[0022] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the technical scope of this utility model.

Claims

1. A central hanger assembly aid, characterized by: The utility model provides a lifting device, including support frame, lifting plate, drive plate, guide rod, connecting nut and adjusting screw rod, the upper end of support frame is provided with installation platform, the middle part of lifting plate is opened the empty circle hole, lifting plate sets up the top of installation platform, drive plate sets up the below of installation platform, guide rod passes through installation platform, the upper and lower ends of guide rod are fixed on lifting plate and drive plate respectively, guide rod sets up four groups and corresponds four corners of lifting plate, connecting nut is fixed on installation platform, adjusting screw rod passes through drive plate, connecting nut and installation platform, adjusting screw rod and connecting nut are screwed, the lower end of adjusting screw rod is head and corresponds the below of drive plate, adjusting screw rod and connecting nut all set up two groups and correspond to the left and right sides of installation platform respectively.

2. A central hanger assembly aid according to claim 1, wherein: The head of the adjusting screw rod is a hexagonal drive head.

3. A central hanger assembly aid according to claim 1, wherein: The utility model also includes a support bottom wheel, which is fixed below the support frame, and the support bottom wheel is arranged in four groups and corresponds to the four corners of the support frame.

4. A central hanger assembly aid according to claim 1, wherein: The utility model also includes a non-slip mat, which is laid above the lifting plate and corresponds to the outer periphery of the empty circle hole.

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