Automatic opening and closing control system for access door of tower mill
By designing the automatic switching control system of the tower mill inspection door, the automatic control module and hydraulic cylinder are used to achieve automatic control of the inspection door, the problem of difficulty in opening and closing the tower mill inspection door is solved, avoiding equipment damage, and improving the operation safety and convenience of the inspection door.
Patent Information
- Application Number
- CN202422337263.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The tower mill maintenance door has a large number of mineral and medium balls in the gap between the cylinder and the maintenance door, and the maintenance door itself is heavy, making it difficult to open and close. In the prior art, equipment damage is caused by violent opening and closing.
An automatic switching control system for the maintenance door of the tower mill is designed, and the opening and closing angle of the maintenance door is controlled through the hydraulic control module, and the hydraulic cylinder and bidirectional hydraulic pipeline are connected to the movable hydraulic station to achieve automatic control.
Effectively control the opening and closing angle of the tower mill inspection door, avoid equipment damage caused by human operation, reduce workers' labor intensity, and achieve safe and smooth opening and closing of the inspection door.
Smart Images
Figure CN222848034U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tower mills, and in particular relates to an automatic switch control system for a tower mill maintenance door. Background Art
[0002] At present, tower mills are mainly used in fine grinding operations in mining, cement, metallurgy and other industries, and can replace ball mills as second-stage or third-stage grinding equipment. Compared with ball mills, tower mills have the characteristics of simple structure, small footprint, high energy utilization, low medium ball loss, and uniform product distribution particle size. They have been widely recognized by the industry and have broad market application prospects.
[0003] The tower mill needs to be overhauled every six months, and the inspection door needs to be opened to replace the spiral liner. Since there are a large number of minerals and medium balls in the gap between the tower mill barrel and the inspection door, and the tower mill inspection door itself is heavy, the tower mill inspection door is difficult to open and close. In the prior art, workers in the ore dressing plant usually connect a wire rope to the outside of the inspection door and use a loader to pull the wire rope to open and close the inspection door. This violent opening and closing method can neither control the speed of opening and closing of the inspection door, nor can it well control the opening and closing angle of the inspection door. In addition, the inspection door is under very poor stress, which can easily cause the barrel and the inspection door flange to deform and damage the equipment. Utility Model Content
[0004] The utility model aims at the above-mentioned problems, makes up for the deficiencies of the prior art, and provides an automatic opening and closing control system for a tower mill maintenance door; the utility model can open and close the tower mill maintenance door through a hydraulic control module, thereby reducing the labor intensity of workers and eliminating the hazards caused by violent opening and closing methods.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions.
[0006] The utility model provides an automatic switch control system for a tower mill maintenance door, wherein the side of the maintenance door is hinged to the tower mill cylinder through a door hinge and a door shaft, and is characterized in that it comprises a first support fixed on the maintenance door and a second support fixed on the tower mill cylinder, wherein the first support is hinged to one end of a crossbeam, one end of the second support is hinged to one end of a support rod, the other end of the support rod is hinged to the side of the crossbeam, the other end of the second support is hinged to the cylinder body of a hydraulic cylinder, and the piston rod end of the hydraulic cylinder is hinged to the other end of the crossbeam.
[0007] Furthermore, the hydraulic cylinder is connected to a movable hydraulic station via a bidirectional hydraulic pipeline, and the movable hydraulic station is provided with a hydraulic control module for controlling the hydraulic cylinder.
[0008] The beneficial effects of the utility model.
[0009] The utility model can effectively control the opening and closing angles of the tower mill maintenance door through the hydraulic control module without human intervention. The hydraulic control system can be used to slowly open and close the maintenance door without damaging the equipment. The installation and operation are simple and convenient, and the phenomenon of manual violent opening and closing damaging the cylinder and the maintenance door is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.
[0011] Figure 1 It is a structural schematic diagram of the utility model when the inspection door is in a closed state.
[0012] Figure 2 It is a structural schematic diagram of the utility model when the inspection door is in an open state.
[0013] Markings in the figure: 1 is the inspection door, 2 is the tower mill cylinder, 3 is the first support, 4 is the second support, 5 is the crossbeam, 6 is the support rod, 7 is the hydraulic cylinder, 8 is the two-way hydraulic pipeline, 9 is the movable hydraulic station, and 10 is the hydraulic control module. DETAILED DESCRIPTION
[0014] As shown in the accompanying drawings, this embodiment provides an automatic opening and closing control system for a tower mill maintenance door, including a first support 3 fixed on the maintenance door 1 and a second support 4 fixed on the tower mill cylinder 2. The side of the maintenance door 1 is hinged to the tower mill cylinder 2 through a door hinge and a door axis, the first support 3 is hinged to one end of the crossbeam 5, one end of the second support 4 is hinged to one end of the support rod 6, the other end of the support rod 6 is hinged to the side of the crossbeam 5, the other end of the second support 4 is hinged to the cylinder body of a hydraulic cylinder 7, and the piston rod end of the hydraulic cylinder 7 is hinged to the other end of the crossbeam 5.
[0015] The hydraulic cylinder 7 is connected to a movable hydraulic station 9 via a bidirectional hydraulic pipeline 8 , and a hydraulic control module 10 for controlling the hydraulic cylinder 7 is provided on the movable hydraulic station 9 .
[0016] The principle of this system is as follows:
[0017] When the maintenance door is closed Figure 1As shown, through the control of the hydraulic control module 10, the hydraulic oil in the movable hydraulic station 9 can enter the hydraulic cylinder 7 through one of the two-way hydraulic pipelines 8, and the piston rod of the hydraulic cylinder 7 is pushed out to apply thrust, with the hinge of the beam 5 and the support rod 6 as the fulcrum, pushing the end of the beam 5 near the fulcrum to move away from the hydraulic cylinder 7, and then the end of the beam 5 away from the fulcrum is subjected to a force in the opposite direction, and is hinged with the first support 3 welded to the tower mill maintenance door, driving the maintenance door 1 together with the first support 3 to close around the door axis toward the tower mill cylinder 2.
[0018] When the maintenance door is open Figure 2 As shown, through the control of the hydraulic control module 10, the hydraulic oil in the hydraulic cylinder 7 can also be returned to the movable hydraulic station 9 through the other route in the two-way hydraulic pipeline 8, and the piston rod of the hydraulic cylinder 7 is retracted, and the crossbeam 5 near the fulcrum end is pulled toward the hydraulic cylinder 7 with the hinged point of the crossbeam 5 and the support rod 6 as the fulcrum, and then the crossbeam 5 away from the fulcrum end is subjected to a force in the opposite direction, and is hinged with the first support 3 welded to the maintenance door, driving the maintenance door together with the first support 3 to open around the door axis away from the tower mill barrel 2 until the inspection door 1 is rotated and opened to the maximum state.
[0019] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the implementation mode of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.
Claims
1. An automatic opening and closing control system for a tower mill inspection door, wherein the side of the inspection door (1) is hinged to the tower mill cylinder (2) through a door hinge and a door shaft, and is characterized in that: The invention comprises a first support (3) fixed on the inspection door (1) and a second support (4) fixed on the tower mill barrel (2), wherein the first support (3) is hinged to one end of a crossbeam (5), one end of the second support (4) is hinged to one end of a support rod (6), the other end of the support rod (6) is hinged to the side of the crossbeam (5), the other end of the second support (4) is hinged to the cylinder body of a hydraulic cylinder (7), and the end of the piston rod of the hydraulic cylinder (7) is hinged to the other end of the crossbeam (5).
2. The automatic opening and closing control system for the tower mill maintenance door according to claim 1 is characterized in that: The hydraulic cylinder (7) is connected to a movable hydraulic station (9) via a bidirectional hydraulic pipeline (8); the movable hydraulic station (9) is provided with a hydraulic control module (10) for controlling the hydraulic cylinder (7).