A dolly anti-derailing device

Abstract

The utility model relates to metallurgical equipment technical field discloses a trolley anti -derailment device, including trolley, center axis, frame, fixed axle and anti -drop wheel, the frame is nested fixed in the center axis middle part, a plurality of fixed pieces one end is fixed in the frame, the other end is fixed in the bottom car frame of trolley, at least a pair of anti -drop wheel is rotated and is connected respectively in the both ends of center axis through bearing, and the anti -drop wheel is straddled and arranged on the track, and the flange of the anti -drop wheel is designed, and the effective restraint to trolley horizontal and vertical direction is realized simultaneously, and the whole device's structure is simple, is very favorable to installation, debugging and later maintenance, reduces the skill requirement and labor intensity of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment technology, specifically to a trolley anti-derailment device. Background Technology

[0002] In the sintering production process of the iron and steel metallurgy industry, the walking beam sintering machine is one of the core pieces of equipment. In its production process, after the empty trolley is unloaded at the tail end of the machine, it needs to be transported to the return track by a shuttle car. Then, through the relay cooperation of several return cars and shuttle cars, it finally returns to the loading point for cyclical operation.

[0003] When the traction mechanism pulls the empty trolley off the tipper, due to the operational requirements, the trolley extends a large distance. At the moment of passing through the rail connection (such as a switch or joint), the trolley will experience significant horizontal displacement and vertical jumping, with extremely obvious swaying. This unstable movement greatly increases the risk of the trolley derailing. Once a derailment accident occurs, it will not only damage the equipment but also cause the production line to be interrupted. Each accident takes tens of minutes to handle, seriously disrupting the production rhythm, wasting manpower and resources, and ultimately having a direct negative impact on production efficiency and economic benefits.

[0004] For example, the anti-derailment device for the unloading trolley of the sintering ring cooler, published in CN215491099U, attempts to constrain the trolley's running trajectory by adding anti-tipping wheels, guide rollers, or guard rail devices. However, it still has limitations in the trial. For example, it can only effectively suppress horizontal deviation, and it lacks an effective constraint mechanism for the vertical upward jump of the trolley caused by the impact of the track joint and load changes. At the same time, this structure is relatively complex, requires high installation accuracy, and is inconvenient for later maintenance and replacement. Summary of the Invention

[0005] Therefore, the purpose of this utility model is to provide a vehicle anti-derailment device that can effectively solve the problems mentioned in the background art.

[0006] The present invention adopts the following technical solution: a trolley anti-derailment device, comprising a trolley, a central shaft, a frame, a fixed shaft and anti-derailment wheels. The frame is nested and fixed in the middle of the central shaft. Multiple fixing parts are fixed at one end to the frame and at the other end to the bottom frame of the trolley. At least one pair of anti-derailment wheels are rotatably connected to both ends of the central shaft through bearings. The anti-derailment wheels straddle the track.

[0007] The anti-detachment wheel includes a wheel body and a flange, and the end face of the wheel body facing the central axis is provided with a flange having a guide slope.

[0008] The flange is located on the outside of the track and is used to simultaneously constrain the displacement of the trolley relative to the track in both the horizontal and vertical directions.

[0009] A vertical gap is reserved between the top surface of the flange and the bottom surface of the contacted rail, and the gap value is smaller than the vertical runout amplitude when the trolley is running normally.

[0010] The fastener is a plate-shaped structure that is fixed to the frame at equal intervals.

[0011] The fastener is connected to the trolley by welding, riveting, or flange bolts, and is used to adapt to the installation interface of different trolley models.

[0012] The anti-detachment wheel is an engineering nylon wheel, a polyurethane wheel, or a rubber-coated metal wheel.

[0013] Compared with the prior art, the advantages of this utility model are: the device achieves effective constraint on the trolley in both horizontal and vertical directions through the flange design of the anti-detachment wheel. The structure of the whole device is simple, which is very beneficial for installation, debugging and later maintenance, and reduces the skill requirements and labor intensity of maintenance personnel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the present invention; Figure 3 This is a schematic diagram of the anti-detachment wheel of this utility model; In the diagram: 1. Central shaft; 2. Frame; 3. Fixing component; 4. Anti-detachment wheel; 41. Wheel body; 42. Flange; 5. Trolley; 6. Bulk hopper; 7. Track. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] Please see Figure 1 , Figure 2 , Figure 3As shown, a trolley anti-derailment device includes a trolley 5, a track 7, a central shaft 1, a frame 2, fixing parts 3, and anti-derailment wheels 4. The frame 2 is nested and fixed in the middle of the central shaft 1. One end of each fixing part 3 is fixed to the frame 2, and the other end is fixed to the bottom frame of the trolley 5. At least one pair of anti-derailment wheels 4 are rotatably connected to both ends of the central shaft 1 through bearings. The anti-derailment wheels 4 straddle the track 7.

[0018] The anti-detachment wheel 4 includes a wheel body 41 and a flange 42. The end face of the wheel body 41 facing the central shaft 1 is provided with a flange 42 having a guide slope.

[0019] The flange 42 is located on the outside of the track 7 and is used to simultaneously constrain the displacement of the trolley 5 relative to the track 7 in both the horizontal and vertical directions.

[0020] A vertical gap is reserved between the top surface of the flange 42 and the bottom surface of the contacted rail 7, and the gap value is less than the vertical jump amplitude of the trolley 5 during normal operation.

[0021] The vertical gap is 1-5mm.

[0022] The fastener 3 is a plate-shaped structure and is fixed to the frame 2 at equal intervals.

[0023] The fastener 3 is connected to the trolley 5 by welding, riveting, or flange bolts, and is used to adapt to the installation interface of different models of trolley 5.

[0024] The anti-detachment wheel 4 is an engineering nylon wheel, a polyurethane wheel, or a rubber-coated metal wheel.

[0025] The cross-section of the rim 42 of the anti-detachment wheel 4 is L-shaped. Its vertical section is used to constrain the horizontal displacement of the trolley 5, and its horizontal section is used to constrain the vertical runout of the trolley 5. One embodiment of this utility model: Multiple fixing parts 3 are staggered and fixed to the bottom of the trolley 5. The anti-derailment wheels 4 on both sides are hooked to the bottom of the track 7 and roll in the same direction as the main wheel. At this time, the flange 42 maintains a small gap with the side and bottom surface of the track 7. This gap ensures that the trolley 5 will not contact the anti-derailment wheel 4 within the normal fluctuation range, thereby minimizing running resistance and avoiding jamming or aggravated wear. Lateral movement of the trolley 5 will cause the track 7 to squeeze the side of the flange 42 of the anti-derailment wheel 4. The flange 42 resists this compression through its structural strength, pushing the trolley 5 back to the center of the track and preventing it from derailing laterally. The trolley 5 jumps upward due to the impact of the track 7 joint, etc. Once its jumping amplitude exceeds the reserved vertical gap, the bottom surface of the track 7 will contact the top surface of the wheel 41. The wheel 41 at this time acts as a stop, preventing the trolley 5 from jumping upward and causing it to fall back to its original position quickly, thereby avoiding derailment caused by suspension or drastic changes in the center of gravity.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trolley anti-derailment device, comprising a trolley (5) and a track (7), characterized in that: It also includes a central shaft (1), a frame (2), a fixing component (3) and anti-detachment wheels (4). The frame (2) is nested and fixed in the middle of the central shaft (1). One end of each fixing component (3) is fixed on the frame (2) and the other end is fixed on the bottom frame of the trolley (5). At least one pair of anti-detachment wheels (4) are rotatably connected to both ends of the central shaft (1) through bearings. The anti-detachment wheels (4) straddle the track (7).

2. The anti-derailment device for a trolley according to claim 1, characterized in that: The anti-detachment wheel (4) includes a wheel body (41) and a flange (42). The end face of the wheel body (41) facing the central shaft (1) is provided with a flange (42) having a guide slope.

3. The anti-derailment device for a trolley according to claim 2, characterized in that: The flange (42) is located on the outside of the track (7) and is used to constrain the displacement of the trolley (5) relative to the track (7) in both the horizontal and vertical directions.

4. The anti-derailment device for a trolley according to claim 2, characterized in that: A vertical gap is reserved between the top surface of the wheel (41) and the bottom surface of the contacted rail (7), and the gap value is less than the vertical jump amplitude of the trolley (5) during normal operation.

5. The anti-derailment device for a trolley according to claim 1, characterized in that: The fastener (3) is a plate-shaped structure and is fixed to the frame (2) at equal intervals.

6. The anti-derailment device for a trolley according to claim 1, characterized in that: The fastener (3) is connected to the trolley (5) by welding, riveting or flange bolts, and is used to adapt to the installation interface of different models of trolleys (5).

7. A trolley anti-derailment device according to claim 1, characterized in that: The anti-detachment wheel (4) is an engineering nylon wheel, a polyurethane wheel, or a rubber-coated metal wheel.

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