Balancing device for section mill bracket
By setting up balance beams and buffer structures on the steel rolling mill brackets, the problem of uneven stress on the wire ropes in traditional devices is solved, intuitive detection and rapid adjustment are achieved, and the stability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202422842076.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The traditional steel rolling mill bracket balance device is prone to uneven stress on the wire rope during long-term use, resulting in unbalanced upper bearing seats, affecting rolling quality and equipment safety, and lacking intuitive detection methods and complex adjustment processes.
A balance beam structure is set up on the top of the upper bearing seat. By observing the horizontal state of the balance beam, the force uniformity of the wire rope is judged, and rapid adjustment is achieved through buffers and limit units to simplify the operation process.
It realizes intuitive detection and rapid adjustment of the uniformity of the wire rope, improves equipment stability and safety, and reduces failure rate and maintenance difficulty.
Smart Images
Figure CN223171627U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to rolling mill equipment, in particular to a balance device for a section steel rolling mill bracket. Background Art
[0002] In steel plant production, the section steel rolling mill is an important device for manufacturing various section steels. To ensure the stability of the rolling process and product quality, all components of the section steel rolling mill must maintain precise balance. Especially in terms of the balance of the upper bearing block, although the existing balance device for the section steel rolling mill bracket can maintain the balance of the upper bearing block to a certain extent, there are still the following deficiencies in practical applications:
[0003] First, during the long-term use of the traditional rolling mill bracket balance device, due to the influence of various factors, the wire ropes are prone to uneven stress, resulting in the imbalance of the upper bearing block, and thus affecting the rolling quality and equipment safety.
[0004] Second, the traditional rolling mill bracket balance device usually does not have intuitive detection means, and it is difficult for operators to discover and adjust the problem of uneven stress in a timely manner, increasing the maintenance difficulty and cost.
[0005] Third, when adjusting the length of the wire ropes of the traditional rolling mill bracket balance device, the operation is complex, requiring multiple people to cooperate, and the efficiency is low. Summary of the Invention
[0006] The utility model aims at the defects existing in the prior art and provides a balance device for a section steel rolling mill bracket. By arranging a balance beam structure on the top of the upper bearing block, it realizes the intuitive detection and rapid adjustment of the stress uniformity of the wire ropes, improves the stability and safety of the equipment, simplifies the maintenance process, and reduces the failure rate.
[0007] To achieve the above object, the utility model adopts the following technical scheme. The balance device for a section steel rolling mill bracket includes a balance mechanism body arranged on the section steel rolling mill bracket. Among them, the section steel rolling mill bracket includes a frame, an upper bearing block and a lower bearing block slidably installed on the frame. It is characterized in that: the balance mechanism body includes a balance beam and two pulley brackets arranged on the top of the frame, and each pulley bracket is provided with a pulley at the top; each pulley is equipped with a wire rope to form a pulley assembly; the two pulley assemblies are symmetric with respect to the midline of the upper bearing block.
[0008] The balance beam is connected to the top of the upper bearing block through a lug, and the middle part of the balance beam is hinged to the lug, and the midline of the lug is collinear with the midline of the upper bearing block; both ends of the balance beam are respectively connected to the first ends of the wire ropes of the corresponding pulley assemblies, and the second ends of the wire ropes are connected to the corresponding buffers.
[0009] Further, both ends of the balance beam are connected to the corresponding wire ropes through a buffer limit unit respectively. The buffer limit unit includes a baffle plate and a vertical connecting rod. The baffle plate is horizontally arranged and fixed on the side wall of the pulley bracket. A through hole is formed in the baffle plate. The bottom end of the connecting rod passes through the through hole and is rotatably connected to the balance beam through a second pin shaft. The top end of the connecting rod is connected to the corresponding wire rope.
[0010] Further, the bottom of the lug is fixedly connected to the top of the upper bearing seat, and the top of the lug is rotatably connected to the center of the balance beam through a first pin shaft.
[0011] Further, the two buffer limit units are symmetrically arranged relative to the first pin shaft and have the same structure.
[0012] Further, a connecting ring is arranged at the top end of the connecting rod, and the wire rope is tied to the connecting ring.
[0013] Further, the buffer includes a buffer stop block fixed on the frame, an upper housing and a lower housing. Among them, the upper housing is fixed below the buffer stop block. One end of the lower housing is slidably connected to the upper housing, and a adjusting nut is fixedly connected to the other end of the lower housing. One end of a screw rod passes through the adjusting nut, the lower housing, the upper housing and the buffer stop block in sequence, and the passed-out end is connected to the corresponding wire rope; and the screw rod is threadedly connected to the adjusting nut; A compression spring is sleeved on the screw rod, one end of the compression spring abuts against the inner wall of the upper housing, and the other end of the compression spring abuts against the inner wall of the lower housing.
[0014] Further, a part of the lower housing is always located inside the upper housing.
[0015] Further, both the upper and lower housings are cylindrical structures with one end open.
[0016] Further, a nut is fixedly connected to the bottom of the screw rod to prevent the screw rod from being disengaged due to the failure of the adjusting nut.
[0017] The beneficial effects of the present utility model compared with the prior art.
[0018] The balance device for the section steel rolling mill bracket of the present utility model realizes timely adjustment of the wire ropes with uneven forces by setting a balance beam structure on the top of the bearing seat and judging whether the wire ropes for balance on both sides are evenly stressed by observing whether the balance beam is horizontal, and can effectively prevent accidents caused by the breakage of the wire ropes for balance. Description of the Drawings
[0019] The following further describes the present utility model in conjunction with the drawings and specific embodiments. The protection scope of the present utility model is not limited only to the description of the following content.
[0020] Figure 1 It is a schematic diagram of the use state of the balance device for the section steel rolling mill bracket in the embodiment.
[0021] Figure 2 It is a schematic diagram of the buffer structure of the embodiment.
[0022] Figure 3 It is a schematic diagram of the structure of the main body of the balance mechanism of the embodiment.
[0023] In the figure, 1 is the frame; 2 is the lower bearing seat; 3 is the upper bearing seat; 4 is the lug; 5 is the first pin shaft; 6 is the second pin shaft; 7 is the baffle; 8 is the connecting rod; 9 is the balance beam; 10 is the pulley; 11 is the spring; 12 is the steel wire rope; 13 is the buffer; 14 is the adjusting nut; 15 is the screw rod; 16 is the pulley bracket; 17 is the buffer stop block; 18 is the compression spring; 19 is the upper housing; 20 is the lower housing; 21 is the nut. Specific embodiments
[0024] To make the objectives, technical solutions, and beneficial effects of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.
[0025] The traditional bracket structure of the section steel rolling mill generally involves the main motor, the upper and lower main transmission spindles, the upper bearing seat, and the lower bearing seat. The main motor drives the upper and lower main transmission spindles through a coupling to ensure the synchronous rotation of the rolling rolls. The upper and lower bearing seats respectively support the upper and lower main transmission spindles to ensure their stability and accuracy during high-speed rotation. However, the traditional bracket structure is prone to uneven stress problems during long-term operation, resulting in poor balance, affecting the rolling quality and equipment safety. In addition, the traditional bracket structure lacks intuitive detection means, and the operation of adjusting the balance is complex and inefficient, with relatively large potential safety hazards.
[0026] As Figures 1-3 shown, the balance device of the section steel rolling mill bracket of the present utility model includes a balance mechanism main body disposed on the section steel rolling mill bracket; wherein, the section steel rolling mill bracket includes a frame 1, an upper bearing seat 3 slidably installed on the frame 1, and a lower bearing seat 2. The balance mechanism main body includes a balance beam 9 and two pulley brackets 16 disposed on the top of the frame 1. Each pulley bracket 16 is equipped with a pulley 10 at the top; each pulley 10 is equipped with a steel wire rope 12 to form a pulley assembly; the two pulley assemblies are symmetric with respect to the midline of the upper bearing seat 3; the balance beam 9 is connected to the top of the upper bearing seat 3 through a lug 4, that is, the bottom of the lug 4 is fixedly connected to the top of the upper bearing seat, and the top of the lug 4 is rotatably connected to the center of the balance beam 9 through a first pin shaft 5. And the middle part (or the center point) of the balance beam 9 is hinged to the lug 4, and the midline of the lug 4 is collinear with the midline of the upper bearing seat. Here, it is necessary to maintain the symmetry of the lug, the balance beam, and the pulley assembly with respect to the upper bearing seat to achieve subsequent balance display.
[0027] Both ends of the balance beam 9 are respectively connected to the first ends of the wire ropes 12 of the corresponding pulley assemblies. The second ends of the wire ropes 12 are connected to the corresponding buffers 13. Among them, the function of the buffer is to provide a reverse force when the connecting shaft undergoes a slight deviation, helping the connecting shaft (i.e., the upper bearing block) to return to the central position. The buffer has a certain elasticity and adjustability, and can absorb or release energy. One end of the wire rope is fixed to the top surface of the upper bearing block through the balance beam, and the other end is connected to the buffer through a pulley. When the upper bearing block slides up and down due to the weight of the connecting shaft, the wire rope will also be stretched or relaxed accordingly. Specifically, this solution can visually judge whether the forces on the two wire ropes 12 are uniform by observing whether the balance beam 9 is horizontal, so as to timely discover and adjust the uneven force situation.
[0028] Embodiment 1: Both ends of the balance beam 9 are respectively connected to the corresponding wire ropes 12 through a buffer limit unit. The two buffer limit units are symmetrically arranged relative to the pin shaft 5 and have the same structure. The buffer limit unit includes a baffle 7 and a vertical connecting rod 8. The baffle 7 is horizontally arranged and fixed to the side wall of the bracket 16 of the pulley 10. A through hole is opened on the baffle 7. The bottom end of the connecting rod 8 passes through the through hole and is rotatably connected to the balance beam 9 through the pin shaft 2 6. The top end of the connecting rod 8 is connected to the corresponding wire rope 12. The buffer limit unit can absorb and relieve external impacts and increase the stability of the system. It can also prevent overstretching. Through the cooperation of the connecting rod 8 and the baffle plate 7, the wire rope 12 can be prevented from being overstretched, protecting the wire rope from damage.
[0029] Embodiment 2: The buffer 13 includes a buffer block 17 fixed to the frame 1, an upper housing 19, and a lower housing 20. Among them, the upper housing 19 is fixed below the buffer block 17. One end of the lower housing 20 is slidably connected to the inside of the upper housing 19. The other end of the lower housing 20 is fixedly connected with an adjusting nut 14. One end of a screw 15 passes through the adjusting nut 14, the lower housing 20, the upper housing 19, and the buffer block 17 in sequence, and the protruding end is connected to the corresponding wire rope 12; and the screw 15 is threadedly connected to the adjusting nut 14; A compression spring 18 is sleeved on the screw 15. One end of the compression spring 18 abuts against the inner wall of the upper housing 19, and the other end of the compression spring 18 abuts against the inner wall of the lower housing 20. A part of the lower housing 20 is always located inside the upper housing 19. Both the upper and lower housings 20 are cylindrical structures with one end open. A nut is fixedly connected to the bottom of the screw 15 to prevent the screw 15 from becoming disengaged due to the failure of the adjusting nut 14. The sliding connection between the lower housing 20 and the upper housing 19 allows the lower housing 20 to move axially when subjected to the pulling force from the wire rope 12 without generating lateral displacement, ensuring the linearity and efficiency of the buffer operation.
[0030] Specifically, the design of compression spring 18 can effectively absorb and mitigate external impacts, protecting wire rope 12 and other components from damage. It is also adjustable, allowing the length of screw 15 to be adjusted by adjusting nut 14, thereby adjusting the preload force of buffer 13 to adapt to different working conditions.
[0031] In Example 3, the upper and lower shells of the buffer are both cylindrical structures with one end open, wherein one end of the lower shell extends into the upper shell, and the two are slidably connected; a portion of the lower shell is always located inside the upper shell.
[0032] The following describes the use of the present invention in conjunction with the accompanying drawings and technical solutions:
[0033] 1. When the two steel wire ropes on the left and right sides of the steel rolling mill bracket are unevenly stressed, the balance beam cannot remain horizontal (the end with greater force will tilt upward), and the spring installed on the connecting rod will be compressed by the balance beam at the upward end.
[0034] 2. When the operator observes and finds that this situation occurs, he manually adjusts the relative position of the adjusting nut at the lower end of the buffer on the screw rod through a wrench, thereby tightening or loosening the corresponding length of the wire rope.
[0035] 3. After adjustment, make sure the balance beam is basically horizontal and the spring lengths on both sides of the balance beam remain basically the same.
[0036] 4. The function of the baffle is to limit the two ends of the balance beam to prevent the steel wire from breaking or the phenomenon of running away when the balance beam tilts greatly.
[0037] 5. A nut is provided at the lower end of the screw. Firstly, it can prevent the screw from passing through the buffer and causing a runaway phenomenon when the adjustment nut fails. Secondly, when adjusting the tension of the wire rope, one person can fix the nut of the screw with a wrench while another person tightens the adjustment nut with a wrench.
[0038] In summary, the core technical solution for the steel mill bracket balancing device of this utility model lies in the installation of a balancing beam structure on top of the upper bearing seat. This solution allows operators to quickly determine whether the steel wire ropes on both sides, which maintain balance, are evenly tensioned by visually observing whether the balancing beam is horizontal. This intuitive detection method not only simplifies the inspection process but also allows operators to take immediate measures to adjust the steel wire ropes if uneven tension is detected, thereby greatly reducing the risk of accidents caused by wire rope breakage due to uneven tension.
[0039] Moreover, a screw is installed on the buffer of the rolling mill bracket in the present utility model. A nut is fixedly connected to the lower end of the screw, and the nut can prevent the screw from being tripped due to the failure of the adjusting nut. At the same time, when adjusting the length of the wire rope, the adjusting nut can be screwed after fixing the screw nut, which is convenient for adjusting the tightness of the wire rope.
[0040] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present utility model.
Claims
1. A balance device for a section steel rolling mill bracket, comprising a balance mechanism body arranged on the section steel rolling mill bracket; wherein, The bracket of the section steel rolling mill comprises a frame (1), an upper bearing block (3) and a lower bearing block (2) which are slidably mounted on the frame (1); it is characterized in that: the balance mechanism body comprises a balance beam (9) and two pulley brackets (16) arranged at the top of the frame (1), and a pulley (10) is mounted on the top of each pulley bracket (16); each pulley (10) is equipped with a steel wire rope (12) to form a pulley assembly; the two pulley assemblies are symmetric about the center line of the upper bearing block (3). The balance beam (9) is connected to the top of the upper bearing block (3) through a lug (4), and the middle part of the balance beam (9) is hinged to the lug (4), and the center line of the lug (4) is collinear with the center line of the upper bearing block (3); the two ends of the balance beam (9) are respectively connected to the first ends of the steel wire ropes (12) of the corresponding pulley assemblies, and the second ends of the steel wire ropes (12) are connected to the corresponding buffers (13).
2. The balance device for the bracket of the section steel rolling mill according to claim 1, wherein: The two ends of the balance beam (9) are respectively connected to the corresponding steel wire ropes (12) through a buffer limiting unit, and the buffer limiting unit comprises a baffle (7) and a vertical connecting rod (8), the baffle (7) is horizontally arranged and fixed on the side wall of the pulley (10) bracket (16), a through hole is formed in the baffle (7), the bottom end of the connecting rod (8) passes through the through hole and is rotatably connected to the balance beam (9) through a second pin shaft (6), and the top end of the connecting rod (8) is connected to the corresponding steel wire rope (12).
3. The balance device for the section steel rolling mill bracket according to claim 2, characterized in that: The bottom of the lug (4) is fixedly connected to the top of the upper bearing block (3), and the top of the lug (4) is rotatably connected to the center of the balance beam (9) through a first pin shaft (5).
4. The balance device for the section steel rolling mill bracket according to claim 3, wherein: The two buffer limiting units are symmetrically arranged relative to the first pin shaft (5) and have the same structure.
5. The balance device for a section steel rolling mill bracket according to claim 2, characterized in that: A connecting ring is arranged at the top end of the connecting rod (8), and the steel wire rope (12) is tied to the connecting ring.
6. The balance device for the section steel rolling mill bracket according to claim 1, characterized in that: The buffer (13) comprises a buffer stop block (17) fixed on the frame (1), an upper shell (19) and a lower shell (20). Among them, the upper shell (19) is fixed below the buffer stop block (17), one end of the lower shell (20) is slidably connected in the upper shell (19), the other end of the lower shell (20) is fixedly connected with an adjusting nut (14), and one end of a screw rod (15) passes through the adjusting nut (14), the lower shell (20), the upper shell (19) and the buffer stop block (17) in sequence, and the passed-out end is connected to the corresponding steel wire rope (12); and the screw rod (15) is threadedly connected to the adjusting nut (14); a compression spring (18) is sleeved on the screw rod (15), one end of the compression spring (18) abuts against the inner wall of the upper shell (19), and the other end of the compression spring (18) abuts against the inner wall of the lower shell (20).
7. A balance device for a section steel rolling mill bracket according to claim 6, characterized in that: A part of the lower shell (20) is located in the upper shell (19).
8. A balance device for a section steel rolling mill bracket according to claim 6, characterized in that: Both the upper and lower shells (20) are cylindrical structures with one end open.
9. The balance device for the bracket of a section steel rolling mill according to claim 6, characterized in that: A nut is fixedly connected to the bottom of the screw rod (15) to prevent the screw rod (15) from being disengaged due to the failure of the adjusting nut (14).