Hot hub turnover device of internal combustion locomotive

Abstract

The utility model belongs to the field of diesel locomotives, and particularly relates to a turnover device for a hot hub of a diesel locomotive, which is convenient to transfer and turn over when the hot hub of the diesel locomotive is replaced. According to the technical scheme, the device comprises a four-connecting-rod component and a hoop. The four-connecting-rod component comprises upper connecting rods and lower connecting rods, the two upper connecting rods are symmetrically arranged, one ends of the two upper connecting rods are hinged, the two lower connecting rods are symmetrically arranged, the middles of the two lower connecting rods are hinged, and the other end of each upper connecting rod is further hinged to one end of the corresponding lower connecting rod. The clamps are integrally of a long-strip structure, arc-shaped grooves matched with hot hubs are formed in the clamps, and the other end of each lower connecting rod is hinged to the corresponding clamp.

Description

Technical Field

[0001] This utility model belongs to the field of internal combustion locomotives, specifically relating to a hot wheel hub tilting device for internal combustion locomotives. Background Technology

[0002] When the wear of an internal combustion engine wheel hub (hub thickness, rim thickness) exceeds the limit, the running gear needs to be disassembled through a frame overhaul, leaving only the wheelset and axle, and the entire hub needs to be replaced. The hub replacement uses a heated assembly process, involving hot-release and hot-installation. During the heated assembly, the hub is first heated in a medium-frequency induction heating furnace, resulting in an extremely high temperature (typically exceeding 400°C), before being fitted onto the rim to form an interference fit.

[0003] After the wheel hub is heated, it needs to be flipped and fitted onto the rim. Traditional manual flipping has problems such as low efficiency and great safety hazards.

[0004] Furthermore, existing lifting equipment has the following limitations:

[0005] 1) Insufficient high temperature resistance: Conventional lifting tools (wire ropes) are prone to deformation and aging at high temperatures, resulting in short lifespan and high maintenance costs.

[0006] 2) Flip function defect:

[0007] ① Simple mechanical structure: Most lifting tools rely on manual operation or simple lever mechanisms, and the flipping angle is not accurate, which can easily cause scratches on the surface of the wheel hub or cause it to fall off.

[0008] ② Poor stability: Lacking an adaptive clamping design, the wheel hub may wobble during the flipping process due to the shift in the center of gravity, affecting safety.

[0009] ③ Safety risks: Manual operation in high-temperature environments can easily cause burns, and the wheel hub may accidentally fall off during the flipping process, which may lead to equipment damage or personal injury. Utility Model Content

[0010] To solve the above-mentioned technical problems, this utility model proposes a hot wheel hub flipping device for internal combustion locomotives, which can facilitate transportation and flipping when replacing hot wheel hubs of internal combustion locomotives.

[0011] To achieve the above technical objectives, the present invention provides a hot wheel hub tilting device for internal combustion locomotives. The hot wheel hub tilting device includes a four-bar linkage and a clamp. The four-bar linkage includes upper and lower linkages. The two upper linkages are symmetrically arranged, with one end of each linkage hinged. The two lower linkages are symmetrically arranged, with their middle sections hinged. The other end of each upper linkage is also hinged to one end of a corresponding lower linkage.

[0012] The clamp is a long strip structure, and the clamp is provided with an arc-shaped groove that is compatible with the hot wheel hub. The other end of each lower connecting rod is hinged to a corresponding clamp.

[0013] Preferably, one of the two lower connecting rods has a protrusion. One of the two upper connecting rods has a handle, which is L-shaped. The turning point of the handle is hinged to the corresponding upper connecting rod, and one end of the handle is aligned with the position of the protrusion. When the other end of the handle is pressed down, one end of the handle presses down on the protrusion.

[0014] Preferably, the internal combustion locomotive hot hub tilting device further includes a hook, which is hinged to one end of two upper connecting rods.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention can solve the problem that traditional lifting tools are prone to deformation and aging during the wheel hub flipping process of internal combustion engines, leading to clamping failure, and can also improve work efficiency.

[0017] This invention can eliminate the risk of high-temperature burns caused by frequent human-machine contact. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the clamp of this utility model;

[0020] Figure 3 This is a side view of the clamp of this utility model;

[0021] Figure 4 This is a cross-sectional view of the clamp of this utility model. Detailed Implementation

[0022] The following detailed description is provided in conjunction with the accompanying drawings and embodiments:

[0023] like Figures 1 to 4 As shown, the technical solution provided by this utility model is a hot wheel hub flipping device for internal combustion locomotives. The hot wheel hub flipping device for internal combustion locomotives includes: a four-bar linkage and a clamp 4. The four-bar linkage includes: an upper linkage 1 and a lower linkage 2. The two upper linkages 1 are symmetrically arranged, and one end of each upper linkage 1 is hinged. The two lower linkages 2 are symmetrically arranged, and the middle of each lower linkage 2 is hinged. The other end of each upper linkage 1 is also hinged to one end of a corresponding lower linkage 2.

[0024] The clamp 4 is an elongated structure, and the clamp 4 is provided with an arc-shaped groove that is compatible with the hot wheel hub. The other end of each lower connecting rod 2 is hinged to a corresponding clamp 4.

[0025] One of the two lower connecting rods 2 has a protrusion. One of the two upper connecting rods 1 has a handle. The handle is L-shaped, and the turning point of the handle is hinged to the corresponding upper connecting rod 1. One end of the handle is aligned with the position of the protrusion. When the other end of the handle is pressed down, one end of the handle presses down on the protrusion.

[0026] The internal combustion locomotive hot hub turning device also includes a hook 3, which is hinged to one end of two upper connecting rods 1.

[0027] The specific usage process of this utility model is as follows:

[0028] The upper link 1 and lower link 2 of the four-bar linkage can form a rhomboid frame structure. The clamp 4 is made of steel and has an arc groove. To reduce the impact of the hot wheel hub on the thermal deformation of the clamp 4, refractory material can be installed in the arc groove for heat insulation. The middle part of the clamp 4 is hinged to the other end of the lower link 2.

[0029] In use, the hot wheel hub is laid flat, and the two clamps 4 are set on the edge of the hot wheel hub. Specifically, the hot wheel hub is snapped into the arc groove of the two clamps 4, and the extension line of the pin shaft that is hinged to the lower connecting rod 2 passes through the center of the hot wheel hub.

[0030] The four-bar linkage is slowly lifted using lifting rings. Under the weight of the hot hub, the two lower connecting rods 2 clamp inward, ensuring a tight grip on the hot hub after lifting. This facilitates stability during transport and allows the hot hub to be rotated. Workers can also fine-tune the position of the hot hub using a handle for easier installation after rotation. Pressing down on the other end of the handle prevents the lower connecting rods 2 from loosening to the sides, further enhancing safety.

[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Those skilled in the art can modify or improve the above embodiments without departing from the spirit and scope of this utility model.

Claims

1. A hot wheel hub tilting device for internal combustion locomotives, characterized in that, include: The four-bar linkage includes: an upper link and a lower link. The two upper links are symmetrically arranged and one end of the two upper links is hinged together. The two lower links are symmetrically arranged and the middle of the two lower links is hinged together. The other end of each upper link is also hinged to one end of a corresponding lower link. The clamp is a long strip structure and has an arc-shaped groove that is compatible with the hot wheel hub. The other end of each lower connecting rod is hinged to a corresponding clamp.

2. The internal combustion locomotive hot hub tilting device according to claim 1, characterized in that, One of the two lower links has a protrusion. One of the two upper connecting rods is provided with a handle. The handle has an L-shaped structure. The turning point of the handle is hinged to the corresponding upper connecting rod. One end of the handle is adapted to the position of the protrusion. When the other end of the handle is pressed down, one end of the handle presses down on the protrusion.

3. The internal combustion locomotive hot hub tilting device according to claim 2, characterized in that, The internal combustion locomotive hot hub turning device also includes a hook, which is hinged to one end of two upper connecting rods.

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