Rack for drum-type hot air leaf moistening machine
By using a screw jack and PLC control on the frame of the drum-type hot air leaf humidifier, the safety hazards of traditional frames requiring multiple operators are solved, achieving safe, labor-saving, precise lifting of the drum and single-person operation.
Patent Information
- Application Number
- CN202422814995.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The frame of the traditional drum-type hot air leaf moistening machine requires multiple people to operate during maintenance, which poses a safety hazard and is inconvenient to operate.
The machine adopts a screw jack and PLC-controlled frame structure, equipped with FCP proximity limit switches and handwheels, to achieve safe and precise lifting of the drum and single-person operation.
It achieves high safety and ease of use in the drum maintenance process, reduces the number of operators, avoids drum skew, and improves the reliability and safety of operation.
Smart Images
Figure CN223445146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tobacco leaf threshing and re-drying, in particular to a frame of a drum-type hot air leaf moistening machine. Background Art
[0002] The drum-type hot air leaf moistening machine is one of the main equipment in the leaf threshing production line of the redrying plant. The frame below it mainly supports the drum, feed hopper, and discharge hopper. At the same time, the drive device on the frame drives the drum to rotate. When the drum needs to be repaired, there are lifting components in front and behind the frame to lift the drum for maintenance. Usually, the lifting components in the frame use a hydraulic jack mechanism. Figure 1 As shown, the traditional frame double-lifting structure has a total of 4 jack-lifting mechanisms set in the length direction of the drum. When the drum needs to be repaired, at least 4 people are required to operate the jacks simultaneously to lift the drum, and 1 person is required to observe the lifting status of the drum. It requires a lot of people, and the drum weighs about 6 tons. Any slight deviation in the entire operation process will increase the risk index exponentially. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a frame for a drum-type hot air leaf moistening machine, which has high safety, is easy to use, and saves time and effort.
[0004] The utility model provides a frame for a drum-type hot air leaf moistening machine, comprising: a frame body, a spiral elevator, an elevator mounting seat, and an arc-shaped supporting plate;
[0005] The spiral elevator is fixed on the elevator mounting base, and the elevator mounting base is connected to the frame body;
[0006] An arc-shaped support plate is provided on the top of the spiral elevator;
[0007] The screw jack is controlled by PLC.
[0008] In a specific implementation manner of the present invention, two spiral elevators are arranged at both ends of the frame body.
[0009] In a specific embodiment of the present invention, the screw elevator is equipped with an FCP proximity limit switch for determining whether the jacking is in place.
[0010] In a specific embodiment of the present invention, a hand wheel is provided on the spiral elevator. When the operation cannot be performed through the electric control, the spiral elevator is operated by the hand wheel to perform the jacking operation.
[0011] In a specific implementation manner of the present invention, each of the spiral elevators is provided with 1 to 2 hand wheels.
[0012] In the specific embodiment of the utility model, two spiral elevators are arranged at both ends of the rack body to move simultaneously.
[0013] In the specific embodiment of the utility model, the limit switch is an FCP proximity limit switch.
[0014] Compared with the prior art, the rack has simple structure, needs less personnel, and the electrically-driven lifting drum is synchronous and does not deviate, the starting and ending positions of lifting can be accurately controlled by PLC, and the rack is safe and reliable. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A schematic diagram of a double-lifting structure of a conventional rack is shown;
[0016] Figure 2 A schematic diagram of a rack structure of the utility model is shown;
[0017] Figure 3 A side view of the rack of the utility model is shown;
[0018] In the drawing, 1 is a rack body, 2 is a jack, 3 is a supporting plate, 4 is a drum, 5 is a spiral elevator, 6 is an elevator mounting seat, 7 is an arc-shaped supporting plate, and 8 is a hand wheel. DETAILED DESCRIPTION
[0019] In order to further understand the utility model, the implementation scheme of the utility model is described below in combination with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not limitations of the utility model.
[0020] The embodiment of the utility model discloses a rack for a drum-type hot air leaf moistening machine, like Figure 2 and Figure 3 As shown in the drawing, the rack comprises a rack body 1, a spiral elevator 5, an elevator mounting seat 6, and an arc-shaped supporting plate 7.
[0021] The spiral elevator 5 is fixed on the elevator mounting seat 6, and the elevator mounting seat 6 is connected with the rack body 1.
[0022] Two spiral elevators 5 are arranged at both ends of the rack body 1.
[0023] The top of the spiral elevator 5 is provided with the arc-shaped supporting plate 7.
[0024] The spiral elevator 5 is controlled by PLC.
[0025] The spiral elevator 5 is provided with an FCP proximity limit switch, which is used for judging whether lifting is in place.
[0026] The hand wheel 8 is arranged on the screw jacks 5, and the screw jacks 5 are operated by the hand wheel 8 to perform the jacking operation when the electric control cannot work.
[0027] When the roller needs to be repaired, the screw jacks 5 are controlled by the electric control to act, and the two screw jacks 5 arranged at both ends of the frame are simultaneously lifted to drive the arc-shaped supporting plate 8 to lift the roller 4 upward, and the FCP proximity limit switch in the screw jacks 5 is used to determine whether the jacking is in place. The lifting speed of the screw jacks 5 is 2.9 mm / s, the whole jacking process is controlled at a uniform and slow speed, the roller 4 is prevented from being deviated during the jacking, and the whole operation process is safe and reliable, and few personnel are needed.
[0028] When the equipment is powered off, the screw jacks 5 cannot work by the electric control, and the screw jacks 5 can be operated by the hand wheel 8 to perform the jacking operation of the roller.
[0029] The above description of the embodiments is only used to help understand the method of the utility model and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principles of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.
[0030] The above description of the disclosed embodiments enables the person skilled in the art to implement or use the utility model. Various modifications of the embodiments will be apparent to the person skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A frame for a drum-type hot air leaf moistening machine, characterized in that: include: Frame body, screw jack, jack mounting base, curved support plate; The spiral elevator is fixed on the elevator mounting base, and the elevator mounting base is connected to the frame body; An arc-shaped support plate is provided on the top of the spiral elevator; The screw jack is controlled by PLC.
2. The frame for the drum-type hot air leaf moistening machine according to claim 1, characterized in that: Two spiral elevators are arranged at both ends of the frame body.
3. The frame for the drum-type hot air leaf moistening machine according to claim 1, characterized in that: The spiral elevator is equipped with a limit switch for judging whether the jacking is in place.
4. The frame for the drum-type hot air leaf moistening machine according to claim 1, characterized in that: The spiral elevator is provided with a hand wheel, and when the electric control cannot be used to work, the spiral elevator is operated by the hand wheel to perform the jacking operation.
5. The frame for the drum-type hot air leaf moistening machine according to claim 4, characterized in that: Each of the spiral elevators is provided with 1 to 2 hand wheels.
6. The frame for the drum-type hot air leaf moistening machine according to claim 2, characterized in that: Two spiral elevators are arranged at both ends of the frame body and move simultaneously.
7. The frame for the drum-type hot air leaf moistening machine according to claim 3, characterized in that: The limit switch is an FCP proximity limit switch.