Head fixed cold rolling reel
By designing a cold-rolled roll with a fixed head and using a movable support structure to be fixedly connected to the head support sleeve, the problem of friction and failure caused by the axial reciprocating motion of the roll head bearing and the support sleeve in the extension part of the mandrel in the existing technology is solved, and the stable operation of the roll on the high-tension winding machine is realized.
Patent Information
- Application Number
- CN202411239493.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2044-09-05
AI Technical Summary
The existing cold rolling reel head bearing and support sleeve are subjected to large axial forces during the axial reciprocating motion of the core shaft extension, resulting in friction and failure, and are not suitable for high-tension coilers.
A cold-rolled roll with a fixed head is designed. It is fixedly connected to the head support sleeve through a movable support structure. It adopts surface contact instead of line contact to avoid relative movement. The roll head is fixed by the cooperation of the sliding sleeve and the sector plate, which reduces friction and the probability of failure.
It achieves the fixation of the drum head, reduces friction and failure, extends the service life, and is suitable for high-tension winding machines.
Smart Images
Figure CN119035305B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cold-rolled strip steel production, in particular to a cold-rolled coil with a fixed head. Background Art
[0002] Cold rolled coils are made by re-rolling hot rolled steel coils at room temperature to achieve the desired thickness and hardness.
[0003] The existing cold-rolled reel head bearing and support sleeve are installed in the extension part of the core shaft, and make axial reciprocating motion with the core shaft when the reel expands and contracts. In order to prevent the bearing inside the support sleeve from being subjected to large axial force, the movable support is designed to be a roller type to cooperate with the axial reciprocating motion of the reel head. The reel head and the movable support are in line contact, which is not suitable for high-tension coilers.
[0004] Based on this, a head-fixed cold-rolled coil is now provided to eliminate the disadvantages of the existing device. Summary of the Invention
[0005] The object of the present invention is to provide a head-fixed cold-rolled coil to solve the shortcomings of the current product in the background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] A cold-rolled coil with a fixed head comprises a head support sleeve, a main shaft, and a movable support. The movable support is provided with a plurality of fixing bolt holes. The movable support is fixedly connected to the head support sleeve. The head support sleeve is connected to an extension shaft through a head bearing. The extension shaft is provided with eight sliding sleeve holes. A sliding sleeve is slidingly arranged in the sliding sleeve hole. Two of the sliding sleeves are fixed with jaw sector plates by bolts. The side walls of the jaw sector plates are fixed with sector plates by bolts. The inner side walls of the four jaw sector plates are jointly slidably connected to a core shaft. The side walls of the core shaft are provided with protrusions corresponding to the shape of the jaw sector plates. The four jaw sector plates are jointly slidably connected to the side walls of the main shaft.
[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:
[0009] In an optional solution: a large central bearing is provided on the circumference of the main shaft.
[0010] In an optional solution, a gear is fixedly connected to the circumference of the large middle bearing.
[0011] In an optional solution, a section of the core shaft away from the head support sleeve is connected to the expansion and contraction cylinder.
[0012] In an optional solution, the side wall of the head support sleeve is provided with a chamfer.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The present invention changes the reel head and the corresponding external support structure. The reel head is fixed and does not move with the core shaft. The movable support locks the reel head. The two do not move relative to each other. The two are in surface contact and there is no friction. The probability of failure of related components is reduced, and the service life of the reel and the movable support is guaranteed. The reel is not restricted by the strip tension when working on the coiler. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present invention.
[0016] Figure 2 It is a schematic diagram of the movable support structure of the present invention.
[0017] Figure 3 For the present invention Figure 1 Cross-section view at AA in the middle.
[0018] Figure 4 It is an extended axial cross-sectional view of the present invention.
[0019] Figure 5 It is a front view of the sliding sleeve of the present invention.
[0020] Notes on the accompanying drawings: 1 head support sleeve, 2 head bearing, 3 extension shaft, 4 sliding sleeve, 5 jaw sector plate, 7 core shaft, 8 sector plate, 9 main shaft, 10 middle large bearing, 11 gear, 13 movable support. DETAILED DESCRIPTION
[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
[0022] In one embodiment, Figure 1-Figure 5 As shown, a head-fixed cold-rolled coil comprises a head support sleeve 1, a main shaft 9, and a movable support 13. The movable support 13 is provided with a plurality of fixing bolt holes. The movable support 13 is fixedly connected to the head support sleeve 1. The head support sleeve 1 is connected to the extension shaft 3 through the head bearing 2. The extension shaft 3 is provided with eight sliding sleeve holes. A sliding sleeve 4 is slidingly arranged in the sliding sleeve hole. The two sliding sleeves 4 are fixed with jaw sector plates 5 by bolts. The side walls of the jaw sector plates 5 are fixed with sector plates 8 by bolts. The inner side walls of the four jaw sector plates 5 are slidably connected to the core shaft 7. The side walls of the core shaft 7 are provided with protrusions corresponding to the shape of the jaw sector plates 5. The four jaw sector plates 5 are slidably connected to the side walls of the main shaft 9.
[0023] As the reel expands, the oil cylinder drives the core shaft 7 to the right, causing the jaw sector plates 5 and 8 to move outward, thus expanding the reel. As the jaw sector plates 5 and 8 move outward, the sliding sleeve 4 moves outward, driven by the jaw sector plates 5 and 8. The head support sleeve 1, head bearing 2, and extension shaft 3 do not move. The movable support 13 holds the head support sleeve 1, and the two do not move relative to each other.
[0024] When the reel is reduced, the oil cylinder drives the core shaft 7 to the left, and the jaw sector plates 5 and 8 move inward to reduce the reel. When the jaw sector plates 5 and 8 move inward, the sliding sleeve 4 moves inward under the drive of the jaw sector plates 5 and 8, while the head support sleeve 1, head bearing 2, and extension shaft 3 do not move. The movable support 13 holds the head support sleeve 1, and the two do not move relative to each other.
[0025] In one embodiment, Figure 1 As shown, a large central bearing 10 is provided on the peripheral side of the main shaft 9 .
[0026] In one embodiment, Figure 1 As shown, a gear 11 is fixedly connected to the peripheral side of the middle large bearing 10.
[0027] The large middle bearing 10 is mounted on the main shaft 9 and is installed in the coiler together with the gear 11. The gear 11 is the power source for the rotation of the main shaft 9.
[0028] In one embodiment, Figure 1 As shown, a section of the core shaft 7 away from the head support sleeve 1 is connected to the expansion and contraction cylinder.
[0029] The expansion and contraction oil cylinder brings the core shaft 7 to do reciprocating motion when working.
[0030] In one embodiment, Figure 1 As shown, the side wall of the head support sleeve 1 is provided with a chamfer.
[0031] The above embodiment discloses a cold-rolled coil with a fixed head, and its specific working principle and process are as follows:
[0032] The large central bearing 10 is mounted on the main shaft 9 and is installed inside the coiler together with the gear 11. The gear 11 is the power source for the rotation of the main shaft 9. One end of the mandrel 7 is connected to the expansion and contraction cylinder. When the expansion and contraction cylinder is working, the mandrel 7 moves back and forth. The mandrel 7 has multiple inclined surfaces that cooperate with the jaw sector plate 5 and the sector plate 8.
[0033] As the reel expands, the oil cylinder drives the core shaft 7 to the right, causing the jaw sector plates 5 and 8 to move outward, thus expanding the reel. As the jaw sector plates 5 and 8 move outward, the sliding sleeve 4 moves outward, driven by the jaw sector plates 5 and 8. The head support sleeve 1, head bearing 2, and extension shaft 3 do not move. The movable support 13 holds the head support sleeve 1, and the two do not move relative to each other.
[0034] When the reel is reduced, the oil cylinder drives the core shaft 7 to the left, and the jaw sector plates 5 and 8 move inward to reduce the reel. When the jaw sector plates 5 and 8 move inward, the sliding sleeve 4 moves inward under the drive of the jaw sector plates 5 and 8, while the head support sleeve 1, head bearing 2, and extension shaft 3 do not move. The movable support 13 holds the head support sleeve 1, and the two do not move relative to each other.
[0035] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. A head-fixed cold-rolled coil, characterized in that: The invention comprises a head support sleeve (1), a main shaft (9), and a movable support (13). The movable support (13) is provided with a plurality of fixing bolt holes. The movable support (13) is fixedly connected to the head support sleeve (1). The head support sleeve (1) is connected to an extension shaft (3) through a head bearing (2). The extension shaft (3) is provided with eight sliding sleeve holes. A sliding sleeve (4) is slidingly arranged in the sliding sleeve hole. Two of the sliding sleeves (4) are fixed with jaw sector plates (5) by bolts. The side walls of the jaw sector plates (5) are fixed with sector plates (8) by bolts. The inner side walls of the four jaw sector plates (5) are slidably connected to a core shaft (7). The side walls of the core shaft (7) are provided with protrusions corresponding to the shape of the jaw sector plates (5). The four jaw sector plates (5) are slidably connected to the side walls of the main shaft (9).
2. A head-fixed cold-rolled coil according to claim 1, characterized in that: A large central bearing (10) is provided on the circumferential side of the main shaft (9).
3. A head-fixed cold-rolled coil according to claim 2, characterized in that: A gear (11) is fixedly connected to the circumference of the middle large bearing (10).
4. The head-fixed cold-rolled coil according to claim 1, characterized in that: A section of the core shaft (7) away from the head support sleeve (1) is connected to the expansion and contraction oil cylinder.
5. The head-fixed cold-rolled coil according to claim 1, characterized in that: The side wall of the head support sleeve (1) is provided with a chamfer.
Citation Information
Patent Citations
Fixed support head device of coiler mandrel and usage method thereof
CN108188200A
Cantilever coiling drum end part supporting device for coiling machine
CN202539262U