Hook head assembly for realizing roller pulling at roller pushing station
By using the spring clamping and rotation mechanism in the hook head assembly of the push roller station, the problem of the hook head being unable to quickly connect the working roller after the hook head is decoupled, the automatic connection between the hook head and the working roller is realized, and the roller replacement is simplified Operation and reduce the risk of failure.
Patent Information
- Application Number
- CN202420892145.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-26
AI Technical Summary
When replacing the working rollers in the existing roll mill, the hook head is in a lifted state after being unhooked, which makes it impossible to quickly connect the hook head and the working roller mop in the event of a fault, resulting in time-consuming and laborious operation.
A hook head assembly at the push roller station is designed, including a hook head assembly, a hook head seat, a decoupling table and a roller change cylinder. By setting a clamping spring on the hook head assembly, the clamping spring is clamped in the middle in a horizontal state. The hook head piece and the lateral hook head piece are widened when flipped to the vertical state, and they are separated from the middle hook head piece. The lateral hook head piece is rotated to the working roller mop under the action of gravity to achieve hook head and work Automatic coupling of rollers.
The rapid connection between the hook head and the working roller is achieved, reducing the risks caused by failure, simplifying the roller replacement process, and avoiding the difficulty of manual operation.
Smart Images
Figure CN222153381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel production, in particular to a hook assembly for realizing roller pulling at a roller pushing station. Background Art
[0002] The rolling mill work roll changing platform is equipped with a side shift trolley and a work roll changing hydraulic cylinder on the operating side of each frame. The side shift platform cover is a welded structure, and the side shift track is installed on the cover to guide the work roll and the hook of the roll changing hydraulic cylinder. In order to change rolls more quickly, two sets of tracks are installed on each cover, and all the covers are installed side by side on the side shift frame. In this way, the worn work rolls and bearing seats can be dragged out of the frame through the first pair of tracks, and the new work rolls or ground work rolls can be placed on the second pair of tracks. Through the action of the side shift cylinder, these tracks move toward the soaking furnace to the push roll position, where the new work rolls can be pushed into the frame.
[0003] In the existing design, since the automatic unhooking function is set on the hook assembly of the push roller position, a boss is set at about 50CM at the end of the push roller position guide rail to lift the hook head and unhook it. Therefore, after the roller is pushed into place, the hook head is always in a raised state when it retracts. In the event of equipment failure, when the working roller needs to be pulled out quickly, it is necessary to manually find another wire rope and shackle to connect the hook head and the working roller mop to pull out the working roller. The operation process is time-consuming and laborious.
[0004] In view of this, it is necessary to propose a hook assembly for realizing a pull roller at a roller pushing station to solve the above-mentioned defects. Utility Model Content
[0005] The main purpose of the utility model is to provide a hook head assembly for realizing roll pulling at a roll pushing station, aiming to solve the problem that when the working roll is replaced in the existing rolling mill, the hook head is in a lifted state after being unhooked, so that when a fault occurs and the working roll needs to be pulled out quickly, the hook head and the working roll mop cannot be quickly connected.
[0006] To achieve the above-mentioned purpose, the utility model provides a hook head assembly for realizing a pull roll at a push roll station, comprising a hook head assembly, a hook head seat, a hook-off platform, a roll-changing cylinder and a working roll mop, wherein the roll-changing cylinder is fixedly connected to the end of the hook head seat, the hook head assembly is rotatably mounted on the hook head seat, the hook head assembly hooks the working roll mop, the hook-off platform is supported below the hook head assembly, the hook head assembly comprises a turning pressure rod, a retaining spring, an intermediate hook head piece, lateral hook head pieces located on both sides of the intermediate hook head piece and a fixed An outwardly extending boss is fixed on the lateral hook head piece, and the outwardly extending boss has a low section and a high section. The turning pressure rod is crimped on the middle hook head piece, and the two clamping shafts of the retaining spring pass through the two lateral hook head pieces from the outwardly extending boss and are inserted into the middle hook head piece. The retaining spring is bent from a horizontal state to a vertical state, and the retaining spring transitions from the low section to the high section, and the distance between the two clamping shafts becomes wider and detaches from the middle hook head piece. The two lateral hook head pieces descend under the action of gravity to reset and hook the working roller mop.
[0007] Preferably, the lateral hook head piece and the middle hook head piece are coaxially arranged side by side.
[0008] Preferably, the retaining spring is a U-shaped retaining spring.
[0009] Preferably, the cross section of the decoupling platform is trapezoidal.
[0010] Preferably, the unhooking platform is arranged along the moving direction of the hook head assembly.
[0011] Preferably, the tops of the middle hook head piece and the lateral hook head piece are provided with slots, and the retaining spring in a horizontal state is embedded in the slots.
[0012] Preferably, the turning pressure rod is rotatably connected to the track via a connecting shaft.
[0013] Preferably, the hook head assembly is rotatably connected to the hook head seat via a pin.
[0014] Compared with the prior art, the hook assembly provided by the utility model for realizing roller pulling at the roller pushing station has the following beneficial effects:
[0015] The two lateral hook pieces are then turned to a vertical position so that the two circumferential axes of the clamping spring are spaced apart from each other and the two circumferential axes are separated from the middle hook piece. At this time, the lateral hook piece is not bound to the summary hook piece. The middle hook piece does not move under the action of the turning pressure rod, while the lateral hook pieces on both sides rotate to the working roller mop under the action of gravity and are connected to the working roller mop, so that the hook head assembly and the working roller mop are reconnected and the pulling roller can be realized at the pushing roller station. There is no need to manually connect the hook head and the working roller mop with wire rope and shackle. The connection between the working roller mop and the hook head can be realized by bending the clamping spring at an angle, so that the roller changing work can be carried out smoothly and quickly, which greatly reduces the risk of failure during the roller changing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of the structure of a hook assembly for realizing roller pulling at a roller pushing station provided by the utility model;
[0018] Figure 2 for Figure 1 The structure diagram of the hook assembly part for realizing the pull roller at the roller pushing station shown;
[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the hook head assembly shown;
[0020] Figure 4 for Figure 3 A schematic structural diagram of a hook assembly with a retaining spring in a horizontal state;
[0021] Figure 5 for Figure 3 The structural schematic diagram of the retaining spring shown;
[0022] Figure 6 for Figure 2 An enlarged view of the structure of part A is shown.
[0023] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0027] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0028] Please refer to Figure 1-Figure 3 The utility model provides a hook assembly for pulling a roll at a roller pushing station. The hook assembly for pulling a roll at a roller pushing station comprises a hook assembly 3, a hook seat 5, a decoupling platform 6, a roller changing cylinder 8 and a working roll mop 9. The roller changing cylinder 8 is fixedly connected to the end of the hook seat 5 to drive the hook seat 5 to move back and forth for replacing the working roll 10. The hook assembly 3 is rotatably mounted on the hook seat 5. The hook assembly 3 hooks the working roll mop 9 and moves together with the hook seat 5 under the drive of the roller changing cylinder 8.
[0029] like Figures 4 to 5As shown, the hook head assembly 3 includes a turning pressure rod 31, a retaining spring 33, an intermediate hook head piece 35, lateral hook head pieces 37 located on both sides of the intermediate hook head piece 35, and an outward protrusion 39 fixed on the lateral hook head piece 37, the outward protrusion 39 has a low section 391 and a high section 393, the turning pressure rod 31 is crimped on the intermediate hook head piece 35, and the two clamping shafts 331 of the retaining spring 33 pass through the two lateral hook head pieces 37 from the outward protrusion 39 and are installed on the intermediate hook head piece 35, the retaining spring 33 is bent from a horizontal state to a vertical state, the retaining spring 33 transitions from the low section 391 to the high section 393, and the distance between the two clamping shafts 331 becomes wider and detaches from the intermediate hook head piece 35, and the two lateral hook head pieces 37 descend under the action of gravity to reset and hook the working roller mop 9. By arranging a clamping spring 33 on the multi-piece hook assembly 3, the clamping spring 33 clamps the middle hook piece 35 and the two side hook pieces 37 in a horizontal state, and the clamping spring 33 is turned over to a vertical state, and the distance between the two clamping shafts of the clamping spring 33 becomes wider, and the two clamping shafts 331 are separated from the middle hook piece 35. At this time, the side hook pieces 37 are not bound to the middle hook piece 35, and the middle hook piece 35 does not move under the action of the turning pressure rod 31, while the side hook pieces on both sides are The hook head piece 37 rotates to the working roller mop 9 under the action of gravity and is connected to the working roller mop 9, so that the hook head assembly 3 and the working roller mop 9 are reconnected and the roller pulling can be achieved at the roller pushing station. There is no need to manually connect the hook head and the working roller mop 9 using wire ropes and shackles. The connection between the working roller mop 9 and the hook head can be achieved by bending the retaining spring 33, so that the roller changing work can be carried out smoothly and quickly, which greatly reduces the risk of failure during the roller changing process.
[0030] Further, the lateral hook head piece 37 and the middle hook head piece 35 are coaxially arranged side by side. A pin passes through the lateral hook head piece 37 and the middle hook head piece 35 at the same time to fix them on the hook head seat 5.
[0031] like Figure 5 and Figure 6 As shown, specifically, in this embodiment, the retaining spring 33 is a U-shaped retaining spring. The retaining spring transitions from the low section to the high section, and the two retaining shafts of the U-shaped retaining spring 33 are in a separated state, and open during the rotation angle to change the width spacing, thereby detaching from the middle hook head piece. It should be explained that the low section 391 is a section with a narrower width of the protruding boss, and the high section 393 is a section with a larger width of the protruding boss. The low section 391 to the high section 393 adopts an arc surface transition. Of course, in the process of some implementation operations, when the two retaining shafts of the retaining spring 33 cannot be detached from the middle hook head piece 35, two reverse forces can be applied to the outside of the retaining spring 33 to make it open.
[0032] In detail, the cross section of the unhooking platform 6 is trapezoidal. At the roller pushing station, the clamping spring is also in the state of binding the middle hook head piece and the side hook head piece together. When the middle hook head piece and the side hook head piece of the hook head assembly 3 move to the position of the unhooking platform 6, the unhooking platform is supported under the hook head assembly 3 to lift the middle hook head piece and the side hook head piece to unhook the working roller.
[0033] The unhooking platform 6 is arranged along the moving direction of the hook head assembly so that the unhooking platform 6 can lift up the hook head assembly during its movement.
[0034] Preferably, the tops of the middle hook head piece 35 and the lateral hook head piece 37 are provided with slots, and the retaining spring in the horizontal state is embedded in the slots to strengthen the binding effect of the retaining spring on the middle hook head piece 35 and the lateral hook head piece 37 in the horizontal state.
[0035] The hook assembly 3 is rotatably connected to the hook seat 5 via a pin shaft. The hook assembly 3 rotates around the pin shaft to form a flip angle.
[0036] The hook assembly for realizing the pull roller at the push roller station provided by the utility model is provided with a retaining spring 33 on the multi-piece hook assembly 3, and the retaining spring 33 clamps the middle hook piece 35 and the two lateral hook pieces 37 in a horizontal state, and the retaining spring 33 is flipped to a vertical state, and the distance between the two clamping shafts of the retaining spring 33 becomes wider, and the two clamping shafts are separated from the middle hook piece 35. At this time, the lateral hook piece 37 is not bound to the summary hook piece, and the middle hook piece 35 does not move under the action of the turning pressure rod 31 , and the lateral hook pieces 37 on both sides rotate to the working roller mop 9 under the action of gravity and are connected to the working roller mop 9, so that the hook head assembly 3 and the working roller mop 9 are reconnected and the roller pulling can be achieved at the roller pushing station. There is no need to manually connect the hook head and the working roller mop 9 using wire ropes and shackles. The connection between the working roller mop 9 and the hook head can be achieved by simply bending the retaining spring 33, so that the roller changing work can be carried out smoothly and quickly, greatly reducing the risk of failure during the roller changing process.
[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A hook assembly for realizing roller pulling at a roller pushing station, characterized in that: The cam is fixedly connected to the end of the hook head seat, the hook head assembly is rotatably mounted on the hook head seat, the hook head assembly hooks the working roller mop, and the unhooking platform is supported below the hook head assembly, the hook head assembly comprises a turning pressure rod, a retaining spring, an intermediate hook head piece, lateral hook head pieces located on both sides of the intermediate hook head piece, and an outward projection fixed on the lateral hook head piece, the outward projection having a low section and a high section, the turning pressure rod is pressed on the intermediate hook head piece, the two clamping shafts of the retaining spring pass through the two lateral hook head pieces from the outward projection and are inserted into the intermediate hook head piece, the retaining spring is bent from a horizontal state to a vertical state, the retaining spring transitions from the low section to the high section, and the spacing between the two clamping shafts becomes widened and detaches from the intermediate hook head piece, and the two lateral hook head pieces descend under the action of gravity to reset and hook the working roller mop.
2. The hook assembly for realizing roller pulling at the roller pushing station according to claim 1 is characterized in that: The lateral hook head piece and the middle hook head piece are coaxially arranged side by side.
3. The hook assembly for realizing roller pulling at the roller pushing station according to claim 1 is characterized in that: The retaining spring is a U-shaped retaining spring.
4. The hook assembly for realizing roller pulling at the roller pushing station according to claim 1 is characterized in that: The cross section of the decoupling platform is trapezoidal.
5. The hook assembly for realizing roller pulling at the roller pushing station according to claim 4 is characterized in that: The unhooking platform is arranged along the moving direction of the hook head assembly.
6. The hook assembly for pulling a roller at a roller pushing station according to claim 4 is characterized in that: The tops of the middle hook head piece and the lateral hook head piece are provided with clamping grooves, and the clamping spring in a horizontal state is embedded in the clamping grooves.
7. The hook assembly for realizing roller pulling at the roller pushing station according to claim 1 is characterized in that: The turning pressure rod is rotatably connected to the track through a connecting shaft.
8. The hook assembly for realizing roller pulling at the roller pushing station according to claim 1 is characterized in that: The hook head assembly is rotatably connected to the hook head seat via a pin shaft.