Movable device for replacing strip steel coating process rotating roller

Abstract

The utility model provides a movable device for replacing a strip steel coating process roller, which comprises a moving trolley, a sleeve is mounted on the moving trolley, a lifting driving mechanism for driving the sleeve to lift is connected to the gravity center of the sleeve, and a swing driving mechanism for driving the sleeve to swing along a vertical plane is connected to the tail of the sleeve. According to the device, the sleeve with adjustable height and angle is sleeved into the end part of the roller to realize replacement and transfer without contacting with the surface of the roller, so that the roller surface is prevented from secondary external damage, the working efficiency is improved, and the result is doubled with half the effort.

Description

Technical Field

[0001] The utility model relates to the field of color steel production, in particular to a device for movably replacing rollers in a strip steel coating process. Background Art

[0002] In the continuous production of hot-dip galvanized and color-coated strip steel, the steel material needs to be properly surface treated before coating. Pre-treatment before coating is the basis for obtaining a good coating layer. Since foreign matter is easily generated or attached during processing, storage and transportation, the dirt on the steel surface must be thoroughly removed through the degreasing and cleaning process of pre-degreasing, degreasing, and three-stage water washing. In the pre-treatment unit, the number of rollers used, such as brush rollers, nylon squeeze rollers, and rubber pressure rollers, accounts for more than half of the rollers in the entire line. Brush rollers, fixed rollers, mobile rollers, squeeze rollers, etc. are hollow roller structures with brushes and polyurethane on the surface of the roller body. The quality of the rollers has a great impact on the quality of the product coating. A certain number of spare rollers are always available on the on-site operation side of this process. It is necessary to pay attention to and check the wear of each roller surface frequently. If damaged, they must be replaced in time.

[0003] However, various rollers in the production unit are distributed in groups and arranged in pairs up and down, with exhaust hoods and unit furnace equipment platforms on top. One end of the working roller is live-linked to the motor and reducer on the transmission side, and the space is relatively narrow, so the unit maintenance area is usually designed on the operation side; when replacing various rollers, the parallelism error of the upper and lower rollers is required to be no more than 0.1mm within the roller length of 1500, and the equipment must be flexible and unobstructed after assembly. When replacing rollers, it is strictly forbidden to have slings or wire ropes contact the rubber roller surface to avoid damaging the surface finish of the roller. It is quite difficult to use traditional operation methods such as workshop cranes, power forklifts, support frames, and mechanical chain hoists to replace rollers, which is time-consuming and labor-intensive, with low work efficiency, and cannot achieve safe and effective protection of rollers. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a movable device for replacing strip coating process rollers. The device uses a sleeve with adjustable height and angle to be inserted into the end of the roller to achieve replacement and transfer. There is no need to contact the surface of the roller, which not only prevents the roller surface from being damaged externally, but also improves work efficiency and achieves twice the result with half the effort.

[0005] A device for movably replacing rollers in a strip coating process comprises a movable trolley on which a sleeve is mounted, a lifting drive mechanism for driving the sleeve to lift and lower is connected at the center of gravity of the sleeve, and a swing drive mechanism for driving the sleeve to swing along a vertical plane is connected at the tail of the sleeve.

[0006] Preferably, a main support frame is installed at the right end of the movable trolley, the lifting drive mechanism is hoisted on the main support frame, the inner wall of the support frame is provided with a guide groove, and the sleeve is slidably installed in the guide groove.

[0007] Preferably, a guide plate is connected to the outside of the sleeve, and the guide plate cooperates with the guide groove.

[0008] Preferably, a connecting rib is provided between the outer side wall of the sleeve and the guide plate.

[0009] Preferably, the sleeve is a gradual structure in which the diameter of the left end is smaller than the diameter of the right end.

[0010] Preferably, an auxiliary support frame is installed at the left end of the movable vehicle, and the swing drive mechanism is installed on the auxiliary support.

[0011] Preferably, the lifting drive mechanism and the swing drive mechanism are both hoisting hoists.

[0012] Preferably, a guide wheel is installed on the movable trolley, and the pull rope of the swing drive mechanism is connected to the tail of the sleeve after passing around the guide wheel.

[0013] Preferably, a reinforcement connecting frame for connecting the two supporting frames is provided between the main supporting frame and the auxiliary supporting frame.

[0014] Preferably, a counterweight is provided at the left end of the mobile vehicle.

[0015] Beneficial effects:

[0016] The utility model adopts a sleeve which is adjustable in height and angle to be inserted into the end of the roller to realize replacement and transfer. There is no need to contact the surface of the roller and the surface of the roller is not damaged. The operation radius is large and the device can be flexibly moved forward, backward, left and right. The radiation area of ​​the spatial operation radius is large, simple and flexible, and labor is reduced. The comprehensive cost is low, the work efficiency is high, and the safety and economy are remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the mobile car;

[0020] Figure 3 It is a schematic diagram of the sleeve structure;

[0021] In the figure, 1. main support frame, 2. cross brace, 3. lifting drive mechanism, 4. swing drive mechanism, 5. guide plate, 6. sleeve, 7. moving trolley, 8. guide wheel, 9. counterweight, 10. reinforcement connecting frame, 11. auxiliary support frame, 12. hanging ring, 13. reinforcing rib, 14. wire rope, 15. lifting ring. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0023] like Figure 1-3 As shown, the utility model discloses a movable device for replacing rollers in the strip coating process. Compared with other roller replacement operation methods such as using electric cranes, motorized forklifts, auxiliary gantry frames and mechanical fall chains, the device transfers and supports rollers through a sleeve structure that can be raised and lowered and swung at an angle, which is easier to master and operate. The main body of the device is welded by steel plates, channel steels, square steels, steel pipes and cylindrical steels. The main support frame 1 and the auxiliary support frame 11 are door frame-shaped structures, welded with channel steels, with the steel channels facing inward, and are respectively erected at the front and rear ends of the platform of the mobile trolley 7. The main support frame is higher than the auxiliary support frame. The two support frames are reinforced by a reinforcement connection frame 10 composed of square steel diagonal braces welded between them, so that the center of gravity is gathered to the center between the two support frames.

[0024] A cross brace 2 is welded with a certain load-bearing cylindrical steel below the top frame of the main support frame 1, which is used to suspend the lifting drive mechanism 3. The lifting drive mechanism is a lifting hoist. A guide plate 5 is connected below the lifting hoist. The guide plate is a steel plate of a certain thickness. The steel plate is vertically located at the center of gravity of the long tube of the "barrel" type sleeve 6. Both sides of the steel plate can move vertically up and down in the steel groove standing on the side of the door-shaped support frame. By adjusting the lifting hoist, the steel plate and the sleeve can be driven to slide up and down, and the roller inserted into the sleeve can be moved vertically up and down.

[0025] A metal steel ring is welded at the bottom of the center of the crossbeam on the auxiliary support frame 11 to suspend the swing drive mechanism 4, which is also a hoisting hoist. The hoisting hoist is connected to the upper end of the wire rope 14. The other end of the wire rope passes through a guide wheel 8 rotatably installed on the mobile trolley platform and is connected to the vertically upward hanging ring 12 at the tail end of the sleeve 6. By adjusting this hoisting hoist, the horizontal angle of the inserted roller can be adjusted. A hand push rod is welded on the outer side of the auxiliary support frame 11 to push the mobile trolley.

[0026] The sleeve adopts a "barrel" structure, such as Figure 3As shown, the diameter of the steel pipe at the front end of the sleeve is slightly larger than the outer diameter of the extended section of the roller shaft head, and has a certain thickness and mechanical strength. After being inserted into the roller, it will not bend, deform, or crack during the lifting operation; the rear end of the sleeve is welded with a steel pipe with a diameter smaller than the diameter of the front end of the sleeve, and a hanging ring 12 is welded at the rear end of the steel pipe, which can be connected to the wire rope. The rear half of the sleeve is a thin steel pipe, and its length is greater than the length of the thick steel pipe at the front half of the sleeve, so that the center of gravity of the entire lifting mechanism "barrel" can be on the thick steel pipe sleeve at the connection between the front and rear sections of the steel pipe. A guide plate 5 is made of a steel plate of a certain thickness at a position perpendicular to the center of gravity. The width of the guide plate is less than the distance between the inner sides of the two vertical steel grooves of the main support frame 1. The guide plate can slide vertically up and down along the inner grooves of the two vertical channel steels. The guide plate and the upper end surface of the sleeve are welded with a trapezoidal steel plate as a reinforcing rib 13. There is a hanging hole at the center upper end of the guide plate, which can be connected to the lifting hoist.

[0027] The mobile trolley 7 is welded by four universal wheels, a guide wheel, steel plates and channel steels. Figure 2 As shown, the trolley has a platform at one end of the push rod on which a counterweight block 9 for balancing weight can be placed. Steel plates are welded on the bottom of both sides of the trolley, and slots are provided to place the counterweight module and required tools and objects. Wire rope guide wheels are provided along the front and rear center line of the trolley near the rear support frame, and universal wheels are symmetrically provided at the four corners of the trolley, and have a locking function.

[0028] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A device for removably replacing rollers for strip coating, characterized in that: It comprises a moving trolley (7) on which a sleeve (6) is mounted, a lifting drive mechanism (3) for driving the sleeve to lift and lower is connected at the center of gravity of the sleeve, and a swing drive mechanism (4) for driving the sleeve to swing along a vertical plane is connected at the tail of the sleeve.

2. The device for movable replacement of strip steel coating process rollers according to claim 1 is characterized in that: A main support frame (1) is installed at the right end of the movable trolley, the lifting drive mechanism (3) is hoisted on the main support frame, the inner wall of the main support frame is provided with a guide groove, and the sleeve (6) is slidably installed in the guide groove.

3. The device for movable replacement of strip steel coating process rollers according to claim 2 is characterized in that: The sleeve (6) is externally connected to a guide plate (5), and the guide plate cooperates with the guide groove.

4. The device for movable replacement of strip steel coating process rollers according to claim 2 is characterized in that: A connecting rib plate is provided between the outer side wall of the sleeve (6) and the guide plate (5).

5. The device for movable replacement of strip steel coating process rollers according to claim 2, characterized in that: The sleeve (6) is a gradual structure in which the diameter of the left end is smaller than the diameter of the right end.

6. The device for movable replacement of strip steel coating process rollers according to claim 2, characterized in that: An auxiliary support frame (11) is installed at the left end of the movable trolley (7), and the swing drive mechanism (4) is installed on the auxiliary support.

7. The device for movable replacement of strip steel coating process rollers according to claim 6, characterized in that: The lifting drive mechanism (3) and the swing drive mechanism (4) are both hoisting hoists.

8. The device for movable replacement of strip steel coating process rollers according to claim 6, characterized in that: A guide wheel (8) is installed on the movable trolley (7), and the pull rope of the swing drive mechanism (4) is connected to the tail end of the sleeve (6) after passing around the guide wheel.

9. The device for movable replacement of strip steel coating process rollers according to claim 6, characterized in that: A reinforcement connection frame (10) for connecting the two support frames is provided between the main support frame (1) and the auxiliary support frame (11).

10. The device for movable replacement of strip steel coating process rollers according to claim 1, characterized in that: A counterweight (9) is provided at the left end of the movable trolley (7).

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