A defrosting device for open wagons
By designing and installing a mounting platform, a translation mechanism, and a defreezing device with toothed rollers, the problem of low unloading efficiency of open wagons in cold environments was solved, achieving a highly efficient and flexible defreezing effect and improving unloading efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANFU HEAVY IND
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-30
AI Technical Summary
Existing open wagon unloading machines cannot effectively unload frozen materials from the bottom of the wagon in cold environments, resulting in low unloading efficiency. Furthermore, existing spiral defrosting devices have poor flexibility and low working efficiency.
A freezing device was designed, comprising a mounting base, a translation mechanism, a freezing head rotary table, and a toothed roller. The translation mechanism drives the sliding block and the freezing head rotary table to change the position and angle of the freezing head, and the toothed roller is used for freezing operations. Combined with a hydraulic motor and bevel gear transmission, efficient freezing is achieved.
The defrosting device is highly flexible and efficient, enabling it to quickly defrost large areas of the open wagon floor and improve unloading efficiency.
Smart Images

Figure CN224429498U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of railway transportation auxiliary equipment, specifically relating to a defrosting device for open wagons. Background Technology
[0002] Railway cars are used for long-distance transport of coal or bulk materials. To suppress dust during transport, water is usually sprayed onto the materials. However, in cold environments, the combination of long-distance transport and water spraying can cause the materials to freeze at the bottom of the open cars. Conventional unloading machines cannot effectively unload the frozen material, thus affecting unloading efficiency.
[0003] Chinese patent application number CN202211425426.2 discloses a frozen coal breaking device for bottom-opening dump trucks, which breaks the frozen layer by means of a vertical spiral. Although it has a good ice-breaking effect, its working efficiency is low and it cannot quickly break the large area of the bottom of the truck. Existing spiral-type breaking devices have poor flexibility and low working efficiency.
[0004] Therefore, how to provide a flexible and efficient defrosting device for open wagons is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a defreezing device for open wagons, which is used to break the frozen layer at the bottom of open railway wagons, thereby enabling effective unloading.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a defrosting device for open wagons, comprising:
[0007] Mounting stand, which provides a base for mounting the component;
[0008] A translation mechanism is arranged on the mounting base, and a sliding block is slidably connected to the translation mechanism;
[0009] A defreezing head rotary table, which is fixed on the sliding block;
[0010] A thawing head is fixedly connected to the rotary table of the thawing head rotary table, and a toothed roller for thawing is rotatably connected to the thawing head.
[0011] The technical effects of this utility model are as follows: the mounting base provides the foundation for the installation of related components. In use, the mounting base can be connected to the external lifting frame. The translation mechanism drives the sliding block on it to move, so as to change the working position of the thawing head rotary table and the thawing head on it, and complete the thawing operation in different car positions. The thawing head rotary table can control the rotation of the thawing head and change the working angle of the thawing head, making it flexible to use. The thawing head completes the thawing operation based on the rotating toothed roller, with a large working width and high efficiency.
[0012] Preferably, the mounting platform is a rotary platform or a fixed platform. When the mounting platform is a rotary platform, the translation mechanism is arranged on one side of the rotary platform. When the mounting platform is a fixed platform, there are multiple translation mechanisms arranged on both sides of the mounting platform.
[0013] The resulting technical effect is that the rotary table can rotate to complete the turning operation, and only one side needs to be installed with a translation mechanism and subsequent frost-breaking head components. There can be two translation mechanisms to drive two frost-breaking heads to operate. The fixed table cannot rotate, and multiple translation mechanisms and subsequent frost-breaking head components can be installed on both sides to complete the frost-breaking operation at both ends of the carriage.
[0014] Preferably, the translation mechanism is a hydraulic cylinder driven translation mechanism or a ball screw type translation mechanism.
[0015] The resulting technical effect is that the purpose of the translation mechanism is to move the sliding block on it. The structure is diverse and not singular. The hydraulic cylinder driven translation mechanism can be directly driven by the hydraulic cylinder to move the sliding block on the mounting base.
[0016] Preferably, the ball screw translation mechanism includes a servo motor, a ball screw, a nut, a linear guide rail, and a sliding block. The output shaft of the servo motor is connected to the ball screw. The nut is connected to the ball screw and fixedly connected to the sliding block on the linear guide rail. The sliding block is a plate. The servo motor and the linear guide rail are fixedly connected to the mounting base.
[0017] The resulting technical effect is that the ball screw translation mechanism is based on the rotation of the ball screw driven by the servo motor, which causes the nut to move, thereby completing the sliding block movement. The movement of the sliding block is used to change the working position of the thawing head.
[0018] Preferably, the freezing head includes a connecting column base, a power box, a roller support frame, and a toothed roller. The connecting column base is fixedly connected to the sliding block, the power box is fixedly connected to the end of the connecting column base away from the sliding block, there is an axial deflection angle between the power box and the connecting column base, a hydraulic motor is provided in the power box, the roller support frame is fixedly connected to the end of the power box away from the connecting column base, and the toothed roller is rotatably connected to the roller support frame and is drively connected to the output shaft of the hydraulic motor.
[0019] The resulting technical effect is that the connecting column base and the power box have a deflection angle, which is intended to make the working roller of the thawing head as close to the carriage as possible, reducing the interference of the thawing head body on the operation of the toothed roller. The hydraulic motor is the power source to ensure high torque output, and the power transmission can be completed through bevel gears. The toothed roller can rotate stably for thawing operations.
[0020] Preferably, the teeth on the toothed roller are cutting teeth, and a plurality of cutting teeth are arranged in a spiral pattern on the outer wall of the toothed roller.
[0021] The resulting technical effect is that the cutting teeth are used to break the frozen material, and the spiral layout can better complete the breaking operation, resulting in a good crushing effect. Attached Figure Description
[0022] Figure 1 This is one embodiment of a defrosting device for open wagons according to the present invention;
[0023] Figure 2 This is the side compartment defrosting working state of Example 1;
[0024] Figure 3 This is a second embodiment of the thawing device for open wagons according to the present invention;
[0025] Figure 4 This is a schematic diagram of the working state of Example 2;
[0026] Figure 5 This is a schematic diagram of the translation mechanism of a defrosting device for open wagons according to this utility model;
[0027] Figure 6 This is a schematic diagram of the translation mechanism of a defrosting device for open wagons according to this utility model;
[0028] Figure 7 This is a schematic diagram of the defreezing head of a defreezing device for open wagons according to this utility model. Figure 1 ;
[0029] Figure 8 This is a schematic diagram of the defreezing head of a defreezing device for open wagons according to this utility model. Figure 2 .
[0030] 1 Mounting base, 2 Translation mechanism, 21 Sliding block, 22 Servo motor, 23 Ball screw, 24 Nut, 25 Linear guide rail, 26 Hydraulic cylinder, 3 Freezing head rotary table, 4 Freezing head, 41 Connecting column base, 42 Power box, 43 Roller support frame, 44 Toothed roller, 441 Cutting tooth. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] See appendix to this utility model Figures 1 to 8 According to an embodiment of the present invention, a defrosting device for open wagons includes:
[0033] Mounting platform 1 provides the mounting base for the components, which can be connected to an external lifting frame to complete subsequent frost-breaking operations.
[0034] Translation mechanism 2 is arranged on mounting base 1, and multiple sliding blocks 21 are slidably connected to translation mechanism 2;
[0035] The frost-breaking head rotary table 3 is fixed on the sliding block 21;
[0036] The thawing head 4 is fixedly connected to the rotary table of the thawing head rotary table 3. A toothed roller 44 for thawing is rotatably connected to the thawing head 4. The thawing head rotary table 3 can control the thawing head to change the working angle.
[0037] This product has at least two implementation methods based on the type of mounting base 1. Example 1, see attached document. Figure 1 When the mounting platform 1 is a rotary platform, there are two sets of translation mechanism 2 arranged on one side of the rotary platform of the mounting platform 1; based on the rotary platform, it can rotate and turn around to change the working direction of the defreezing head, thereby completing the defreezing operation at both ends of the carriage.
[0038] Example 2, see attached document Figure 3 The mounting platform 1 is a fixed platform, and the translation mechanism 2 consists of four sets arranged on both sides of the mounting platform 1. The purpose is to complete the defreezing operation at both ends of the carriage.
[0039] The translation mechanism 2 used in Embodiment 1 or Embodiment 2 can take many forms.
[0040] Reference Appendix Figure 5It is a hydraulic cylinder driven translation mechanism, which can directly use the hydraulic cylinder to drive the sliding block to translate.
[0041] Reference Appendix Figure 6 The ball screw type translation mechanism includes a servo motor 22, a ball screw 23, a nut 24, a linear guide rail 25, and a sliding block 21. The output shaft of the servo motor 22 is connected to the ball screw 23. The ball screw 23 is rotatably connected to the mounting base through a bearing seat. The nut 24 is connected to the ball screw 23 and fixedly connected to the sliding block 21 on the linear guide rail 25. The sliding block 21 is a plate. The servo motor 22 and the linear guide rail 25 are fixedly connected to the mounting base 1.
[0042] Reference Appendix Figure 7-8 The thawing head 4 used in Examples 1 and 2 includes a connecting column base 41, a power box 42, a roller support frame 43, and a toothed roller 44. The connecting column base 41 is fixedly connected to the sliding block 21. The power box 42 is fixedly connected to the end of the connecting column base 41 away from the sliding block 21. There is an axial deflection angle α between the power box 42 and the connecting column base 41, which can avoid interference between the main body and the toothed roller, making the toothed roller closer to the carriage. The power box 42 is equipped with a hydraulic motor. The hydraulic motor has a large torque and stable and reliable output, which is suitable for harsh working environments. The roller support frame 43 is fixedly connected to the end of the power box 42 away from the connecting column base 41. The toothed roller 44 is rotatably connected to the roller support frame 43 and is driven by the output shaft of the hydraulic motor. Specifically, it can be a bevel gear transmission method, similar to the gear power transmission of a rotary tiller.
[0043] Specifically, the teeth on the toothed roller 44 are cutting teeth 441, and multiple cutting teeth 441 are arranged in a spiral pattern on the outer wall of the toothed roller 44, which improves the freezing effect.
[0044] This product's frost-breaking head can be arranged on one side, with the operation direction changed based on the rotary table, or it can be arranged on both sides, without the need for rotation and turning. This device is flexible in use, highly efficient in operation, and can assist in unloading.
[0045] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.
[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A defrosting device for open wagons, characterized in that, include: Mounting base (1), which provides a mounting foundation for the component; Translation mechanism (2), the translation mechanism (2) is arranged on the mounting base (1), and a sliding block (21) is slidably connected to the translation mechanism (2); The thawing head rotary table (3) is fixed on the sliding block (21); The freezing head (4) is fixedly connected to the rotary table surface of the freezing head rotary table (3), and a toothed roller (44) for freezing is rotatably connected to the freezing head (4).
2. The defrosting device for open wagons according to claim 1, characterized in that, The mounting platform (1) is a rotary platform or a fixed platform. When the mounting platform (1) is a rotary platform, the translation mechanism (2) is arranged on one side of the rotary platform of the mounting platform (1). When the mounting platform (1) is a fixed platform, there are multiple translation mechanisms (2) arranged on both sides of the mounting platform (1).
3. A defrosting device for open wagons according to claim 2, characterized in that, The translation mechanism (2) is a hydraulic cylinder driven translation mechanism or a ball screw type translation mechanism.
4. A defrosting device for open wagons according to claim 3, characterized in that, The ball screw translation mechanism includes a servo motor (22), a ball screw (23), a nut (24), a linear guide (25), and a sliding block (21). The output shaft of the servo motor (22) is connected to the ball screw (23). The nut (24) is connected to the ball screw (23) and fixedly connected to the sliding block (21) on the linear guide (25). The sliding block (21) is a plate. The servo motor (22) and the linear guide (25) are fixedly connected to the mounting base (1).
5. A defrosting device for open wagons according to claim 1, characterized in that, The freezing head (4) includes a connecting column base (41), a power box (42), a roller support frame (43), and a toothed roller (44). The connecting column base (41) is fixedly connected to the sliding block (21). The power box (42) is fixedly connected to the end of the connecting column base (41) away from the sliding block (21). There is an axial deflection angle between the power box (42) and the connecting column base (41). A hydraulic motor is provided inside the power box (42). The roller support frame (43) is fixedly connected to the end of the power box (42) away from the connecting column base (41). The toothed roller (44) is rotatably connected to the roller support frame (43) and is drively connected to the output shaft of the hydraulic motor.
6. A defrosting device for open wagons according to claim 5, characterized in that, The teeth on the toothed roller (44) are cutting teeth (441), and multiple cutting teeth (441) are arranged in a spiral pattern on the outer wall of the toothed roller (44).