Steel coil trolley transmission mechanism capable of being quickly mounted or dismounted

By designing a steel coil trolley transmission mechanism that can be quickly installed or removed, the challenges of installation accuracy and maintenance efficiency of the transmission mechanism were solved, achieving high-precision meshing and improved equipment stability, thus meeting the equipment operation requirements of the cold rolling mill.

CN224143204UActive Publication Date: 2026-04-21LIUZHOU IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIUZHOU IRON & STEEL CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing steel coil trolley transmission mechanism has large precision errors during installation, which leads to operational obstruction and equipment downtime accidents. Moreover, it is difficult to maintain and cannot meet the precision requirements of cold rolling mills.

Method used

A steel coil trolley transmission mechanism that can be quickly installed or removed is designed. Through the detachable connection of components such as support plate, transmission box, and fixing plate, the high-precision meshing of gears and racks is ensured, and a precise installation benchmark is provided, thereby improving maintenance efficiency and equipment stability.

Benefits of technology

It enables a fast and precise installation and dismantling process, ensuring the meshing accuracy of gears and racks, improving equipment operation stability and maintenance efficiency, and meeting the precision requirements of cold rolling mills.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel coil trolley transmission mechanism capable of being quickly mounted or dismounted, and relates to the technical field of steel coil trolleys. The transmission device comprises a supporting plate installed on the lower portion of one side of a frame, and a transmission box body is installed above the supporting plate. The bottom of the transmission box body is connected with a mounting bottom plate and is mounted on the supporting plate through the mounting bottom plate; a fixed plate is connected to the top of the transmission box body and is mounted at the upper part of the frame; a transmission shaft is installed in the transmission box body and connected with a motor, and the motor is located on one side outside the transmission box body. The utility model has quick and accurate mounting or dismounting capability, ensures the high-precision meshing of the gear and the rack, reduces the difficulty in the mounting or dismounting process, improves the overall efficiency of the maintenance work, effectively improves the operation stability of the equipment, ensures that various control precision requirements are met, and improves the working efficiency of the equipment. Therefore, a firmer technical support is provided for production and operation of enterprises.
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Description

Technical Field

[0001] This utility model relates to the field of steel coil trolley technology, and in particular to a transmission mechanism for a steel coil trolley. Background Technology

[0002] With the rapid advancement of modern industry, artificial intelligence, 5G, and cloud computing have become key technological pillars for enterprises to build core competitiveness. This development trend places more stringent requirements on the operational stability and installation precision of enterprise equipment. In the leveling unit of a cold rolling mill, the transmission mechanism of the coil trolley is particularly critical, making precision control during its maintenance and replacement processes especially important.

[0003] Specifically, the installation accuracy of the transmission mechanism of the steel coil trolley, as the core equipment for loading and unloading steel strip, directly affects the overall lifespan of the trolley. During maintenance and replacement, the levelness and precise meshing of the gears and racks must be ensured to meet stringent precision requirements. However, currently, some steel mills in China experience significant precision errors during the installation of the steel coil trolley transmission mechanism, often leading to trolley malfunctions and even prolonged downtime.

[0004] In response to the challenges faced by the steel coil trolley in the leveling unit of the cold rolling mill in terms of installation accuracy, space constraints, installation and dismantling difficulty, and maintenance efficiency, we urgently need to design a new type of transmission mechanism. Summary of the Invention

[0005] This utility model provides a steel coil trolley transmission mechanism that can be quickly installed or removed. This steel coil trolley transmission mechanism can be installed or removed quickly and accurately, ensuring the meshing accuracy of gears and racks, making spare parts integral and interchangeable, improving maintenance efficiency, enhancing equipment operation stability, and meeting control accuracy requirements. Thus, it meets the performance requirements of steel coil trolleys in cold rolling mill leveling units in terms of installation accuracy, space constraints, installation and removal difficulty, and maintenance efficiency.

[0006] To solve the above problems, the technical solution adopted by this utility model is:

[0007] It includes: the steel coil trolley includes a frame, including a support plate mounted on the lower part of one side of the frame, and a transmission housing mounted on the upper part of the support plate; the bottom of the transmission housing is connected to a mounting base plate, and is mounted on the support plate through the mounting base plate; the top of the transmission housing is connected to a fixing plate, and the fixing plate is mounted on the upper part of the frame; a drive shaft is installed inside the transmission housing, and a motor is connected to the drive shaft, the motor being located on one side outside the transmission housing.

[0008] A more specific technical solution to the above technical solution may be: the mounting base plate is mounted on the support plate by a screw, a nut, and a washer; the fixing plate is mounted on the vehicle frame by a screw, a nut, and a washer.

[0009] Furthermore, a detachable base plate is provided between the mounting base plate and the support plate.

[0010] Furthermore, a detachable side plate is provided between the fixing plate and the upper part of the vehicle frame.

[0011] Furthermore, a reinforcing plate is provided below the support plate and between the support plate and the vehicle frame.

[0012] Furthermore, on the other side of the transmission housing, opposite to the side in contact with the vehicle frame, a second reinforcing plate is provided between the transmission housing and the mounting base plate.

[0013] Furthermore, on the other side of the fixing plate, relative to the side in contact with the frame, a reinforcing plate is provided between the fixing plate and the transmission housing.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0015] 1. This utility model has the ability to install or dismantle quickly and accurately, and ensures high-precision meshing of gears and racks. At the same time, it reduces the difficulty of installation or dismantling, improves the overall efficiency of maintenance work, effectively improves the operational stability of equipment, and ensures that various control precision requirements are met, thereby providing more solid technical support for the production and operation of enterprises.

[0016] 2. In this utility model, the transmission housing provides a precise installation reference for components such as the transmission shaft and motor. After the transmission shaft is installed, it further provides installation positions for components such as the motor, rack, and bearings. It cooperates with the support plate and is securely installed on the steel coil trolley frame through the fixing plate. When maintenance or replacement is required, this utility model can be quickly disassembled and lifted out, saving time and improving efficiency. Moreover, because the installation accuracy is guaranteed, reinstallation can be accurately reset without affecting the meshing accuracy of the gears and rack, improving the operational stability of the equipment and meeting the control accuracy requirements. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention.

[0018] Figure 2 This is the left view of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation of this utility model. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the installation of this utility model. Figure 2 .

[0021] Figure 5 This is a schematic diagram of the installation of this utility model. Figure 3 .

[0022] Figures 1-5 In the diagram, the components are labeled as follows: 1 – frame, 2 – support plate, 3 – transmission housing, 4 – mounting base plate, 5 – fixing plate, 6 – drive shaft, 7 – motor, 8 – screw one, 9 – nut one, 10 – washer one, 11 – screw two, 12 – nut two, 13 – washer two, 14 – base plate, 15 – side plate, 16 – reinforcing plate one, 17 – reinforcing plate two, 18 – reinforcing plate three, 19 – lifting body, 20 – rack. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings:

[0024] like Figure 1-2 The diagram illustrates a quick-installation or dismantling transmission mechanism for a steel coil trolley. The trolley includes a frame 1 and a support plate 2 mounted on the lower side of one side of the frame 1. A transmission housing 3 is mounted above the support plate 2. A mounting base plate 4 is connected to the bottom of the transmission housing 3 and is mounted on the support plate 2 via the mounting base plate 4. A fixing plate 5 is connected to the top of the transmission housing 3, and the bottom end of the fixing plate 5 is welded and fixed to the transmission housing 3. One side of the fixing plate 5 is mounted on the upper part of the frame 1. A transmission shaft 6 is installed inside the transmission housing 3, and a motor 7 is connected to the transmission shaft 6. The motor 7 is located on one side outside the transmission housing 3. In this design, the transmission housing 3 provides a precise mounting reference for the transmission shaft 6 and the motor 7, serving a fixing and supporting function. The transmission shaft 6, installed inside the transmission housing 3, provides mounting positions for the motor 7, rack 20, bearings, and other components. The motor 7 is connected to the transmission shaft 6 and provides power to it. Therefore, when maintenance or replacement is required, it can be quickly disassembled and lifted out, saving time and improving efficiency; and because the installation accuracy is guaranteed, reinstallation can be accurately reset without affecting the meshing accuracy of gears and racks, improving the stability of equipment operation and meeting control accuracy requirements.

[0025] Preferably, the mounting base plate 4 can be installed on the support plate 2 by means of screw 8, nut 9 and washer 10; the fixing plate 2 can be installed on the frame 1 by means of screw 11, nut 12 and washer 13. The fixing method of screw and nut makes the installation or removal of this utility model faster.

[0026] Preferably, a detachable base plate 14 is provided between the mounting base plate 4 and the support plate 2. The design of the base plate 14 provides more operating space for the installation and removal of the transmission mechanism, and its detachable design increases the flexibility of its structure, so that the base plate can be easily removed or installed as needed during installation or removal, further improving the convenience of operation.

[0027] Preferably, a detachable side plate 15 is provided between the fixing plate 5 and the upper part of the frame 1. Similar to the design of the detachable bottom plate 14, the detachable side plate 15 design also provides more operating space and flexibility for the installation and removal of the transmission mechanism.

[0028] Preferably, a reinforcing plate 16 is provided below the support plate 2 and between the support plate 2 and the frame 1. The reinforcing plate 16 enhances the connection strength between the support plate 2 and the frame 1, improves the stability of the entire transmission mechanism, and ensures that the transmission mechanism can withstand the corresponding load during operation.

[0029] Preferably, on the other side of the transmission housing 3, opposite to the side in contact with the frame 1, a second reinforcing plate 17 is provided between the transmission housing 3 and the mounting base plate 4. The second reinforcing plate 17 further enhances the connection between the transmission housing 3 and the mounting base plate 4, improves the installation stability of the transmission housing 3, and helps to ensure the normal operation of components such as the drive shaft 6.

[0030] Preferably, on the other side of the fixing plate 5, opposite to the side that contacts the frame 1, a reinforcing plate 3 18 is provided between the fixing plate 5 and the transmission housing 3. The setting of the reinforcing plate 3 18 strengthens the connection between the fixing plate 5 and the transmission housing 3, making the structure of the entire transmission mechanism more stable and able to better withstand the forces and vibrations generated by the operation of the motor 7. Specific Implementation

[0031] Based on the inner distance of the steel coil trolley track of the cold rolling mill leveling unit being 732mm and the frame length being 2745mm, the width of this utility model is 865mm and the height is 950mm; based on the on-site installation space and track length, the length of this utility model is designed to be 832mm.

[0032] This utility model is installed on the side of the steel coil trolley frame. It consists of a support plate 2, a transmission box 3, a mounting base plate 4, a fixing plate 5, a transmission shaft 6, a motor 7 (in this embodiment, a geared motor is used), a screw 1 8, a nut 1 9, a washer 10, a screw 2 11, a nut 2 12, a washer 2 13, a base plate 14, a side plate 15, a reinforcing plate 1 16, a reinforcing plate 2 17, and a reinforcing plate 3 18. Its external dimensions are 750mm in length, 865mm in width, and 750mm in height.

[0033] The transmission housing 3 is designed with dimensions of 400mm × 650mm × 450mm (length × width × height). Its main function is to provide installation accuracy for the transmission shaft 6 and motor 6, serving as a fixation and support. The transmission shaft 6 is designed with a length of 865mm and an outer diameter of φ113mm. It is mounted on the transmission housing 3 and its main function is to transmit torque, providing mounting positions for bearings, gears, and the motor. The motor 7 is a geared motor selected according to standard and is mounted on the transmission shaft 6. Its main function is to provide power for this utility model. The fixing plate 5 is designed with dimensions of 620mm × 300mm × 25mm (length × width × thickness). Its bottom end is welded to the transmission housing 3. A 350mm × 100mm section is removed in the middle to reduce weight and facilitate installation. The fixing plate 5 has four φ18mm bolt holes with a center distance of 120mm. These are mainly used for connecting to the side plate 15 and the frame 1, and for fixing with upper screw 11, nut 12, and washer 13. Mounting base plate 4 has dimensions of 375mm × 630mm × 25mm (length × width × thickness). Its upper right side is welded to the transmission housing 3. A 375mm × 258mm section is pre-drilled in the middle for mounting motor 6. Mounting base plate 4 has four φ24mm bolt holes with a center-to-center distance of 150mm in the longitudinal direction and 408mm in the transverse direction. These holes are used for connection with base plate 14 and support plate 2, and are secured with screw 8, nut 9, and washer 10. Reinforcing plate 3 (18) has dimensions of 135mm × 200mm × 25mm (length × height × thickness). Its bottom side is welded to the transmission housing 3, and its right side is welded to the fixing plate 5. It primarily serves a supporting and reinforcing function. Reinforcing plate 2 (17) has dimensions of 150mm × 120mm × 25mm (length × height × thickness). Its right side is welded to the transmission housing 3, and its bottom side is welded to the mounting base plate 4. It primarily serves a supporting and reinforcing function.

[0034] Side plate 15 is rectangular in shape. Based on the design dimensions of fixing plate 5 (length × width × thickness 620mm × 300mm × 25mm), its external dimensions are designed to be 650mm long, 300mm wide, and 25mm thick. Its side length of 650mm is 30mm longer than the side length of fixing plate 5 (620mm), meaning it protrudes 15mm at each end for quick assembly and disassembly, improving maintenance efficiency. Since fixing plate 5 has a length × width of 350mm × 100mm after removing the middle section, side plate 16 also has a length × width of 350mm × 100mm after removing the middle section, improving installation accuracy. Fixing plate 5 has four φ18mm bolt holes with a center-to-center distance of 120mm. Side plate 15 has a 130mm long hole with a width of 30mm and a center-to-center distance of 120mm, primarily for adjustable centering and as an intermediate transition pad.

[0035] The support plate 2 is installed below the mounting base plate 4. Its external dimensions are 750mm long, 630mm wide, and 25mm thick. The support plate 2 is designed with the same dimensions as the four φ24mm bolt holes on the mounting base plate 4. The center distance between the holes in the long direction is 150mm and the center distance between the holes in the wide direction is 408mm. The support plate 2 is mainly designed to cooperate with the mounting base plate 4 for installation. It is fixed with screw 8, nut 9 and washer 10, which serves to fix and support the installation.

[0036] The base plate 14 is installed between the mounting base plate 4 and the support plate 2. According to the design dimensions of the mounting base plate 4, the length × width × thickness is 375mm × 630mm × 25mm, with a reserved length × width of 375mm × 258mm in the middle. The mounting base plate is designed with 4 φ24mm bolt holes. Therefore, the base plate 14 is designed to be divided into two parts, each with a length × width × thickness of 750mm × 186mm × 30mm. It is also designed with φ24mm bolt holes. The distance from the center to the end face is 650mm, which mainly serves as an intermediate transition pad.

[0037] The reinforcing plate 16 is trapezoidal and is installed between the support plate 2 and the frame 1. Based on the design dimensions of the base plate 14 (750mm long), its external dimensions are designed to be 750mm long, 200mm wide, and 20mm thick. Its short side right end face is welded and fixed to the frame 1, and its upper end face is welded and fixed to the base plate 14. It mainly serves to support and reinforce. The weld height is 5mm. After full welding, the weld is ground until smooth.

[0038] The inspection and dismantling method of this utility model is as follows:

[0039] When maintenance and dismantling are required, such as Figure 3 As shown, first loosen screw 8, nut 9, and washer 10, and then loosen screw 11, nut 12, and washer 13. Then, using an overhead crane and chain hoist, lift the utility model and pull out the base plate 14 and side plate 15. The utility model then rests on the support plate 2. Next, as... Figure 4 As shown, the present invention is detached from the rack 20; finally, as shown... Figure 5 As shown, this utility model was lifted out.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-mountable or demountable steel coil car drive mechanism, said steel coil car comprising a car frame, characterized in that: The system includes a support plate mounted on the lower part of one side of the frame, with a transmission housing mounted on top of the support plate; a mounting base plate connected to the bottom of the transmission housing, which is then mounted on the support plate; a fixing plate connected to the top of the transmission housing, which is mounted on the upper part of the frame; and a drive shaft installed inside the transmission housing, with a motor connected to the drive shaft, the motor located on one side outside the transmission housing.

2. The quick-mountable or demountable steel coil car drive mechanism according to claim 1, characterized in that: The mounting base plate is mounted on the support plate by screw one, nut one and washer one; the fixing plate is mounted on the vehicle frame by screw two, nut two and washer two.

3. The quick-mountable or demountable steel coil car drive mechanism according to claim 1 or 2, characterized in that: A removable base plate is provided between the mounting base plate and the support plate.

4. The quick-mountable or demountable steel coil car drive mechanism according to claim 3, characterized in that: A detachable side plate is provided between the fixing plate and the upper part of the vehicle frame.

5. The quick-mountable or demountable steel coil car drive mechanism of claim 4, wherein: Below the support plate, a reinforcing plate is provided between the support plate and the vehicle frame.

6. The quick-mountable or demountable steel coil car drive mechanism of claim 5, wherein: On the other side of the transmission housing, opposite to the side in contact with the vehicle frame, a second reinforcing plate is provided between the transmission housing and the mounting base plate.

7. The quick-mountable or demountable steel coil car drive mechanism of claim 6, wherein: On the other side of the fixing plate, opposite to the side that contacts the frame, a reinforcing plate is provided between the fixing plate and the transmission housing.