Horizontal ring rolling machine light material short holding arm device

Abstract

The utility model discloses a kind of short arm device of light section of horizontal ring rolling machine, it is related to the technical field of light section of horizontal ring rolling machine, including short arm seat body, short arm rotating mechanism, short arm, embrace roller mechanism, short arm oil cylinder mechanism;The short arm ring embrace point of the utility model is closer to ring piece round end point, force arm is greatly shortened, under equivalent rolling force, the bending moment that ring piece suffers is significantly reduced, extrusion deformation resistance is improved, ovality deformation is smaller;Short arm overall length is shortened, rotational inertia is reduced;With short arm oil cylinder mechanism, opening and closing response time is greatly shortened, production efficiency is significantly improved;Ring embrace force direction is more close to ring piece radial, " climb roller " and lateral movement are inhibited, finished product first pass rate is greatly improved;Device can be two or more collaborative arrangements, can adapt to different outer diameter, different wall thickness light thin ring piece;The utility model fundamentally solves the problems, such as deformation, low efficiency, poor quality etc. in the rolling of traditional long arm in light thin ring piece.

Description

Technical Field

[0001] This utility model relates to the technical field of lightweight ring rolling arm for horizontal ring rolling machines, specifically a short arm device for lightweight ring rolling machines. Background Technology

[0002] Horizontal ring rolling mills are core equipment in the ring rolling industry. Their clamping arm mechanism is used to clamp and support the ring during the rolling process to ensure the ring's geometric accuracy and rolling stability. Current technologies generally employ a "long clamping arm" structure, but this structure has the following drawbacks:

[0003] 1. The circumference of the ring is far from the center of the ring, about 1 / 4 of the way around, and the lever arm is long;

[0004] 2. When rolling thin, hot rings (wall thickness ≤ 30 mm, outer diameter ≤ 800 mm), the radial force applied by the long clamp will generate a large bending moment on the ring.

[0005] 3. Hot thin rings have low stiffness and high temperature, making them prone to plastic deformation such as elliptic, wavy, and warped due to bending moment, accompanied by the "roller climbing" phenomenon, resulting in poor roundness, uneven wall thickness, and surface defects in the finished product. In severe cases, it is necessary to stop the machine for rework.

[0006] Therefore, long clamping arms can no longer meet the rolling requirements of "high precision, high efficiency, and low deformation" for thin and light ring parts, and the industry urgently needs a special clamping arm device for thin and light parts. Utility Model Content

[0007] The purpose of this utility model is to provide a short-arm device for thin parts of a horizontal ring rolling mill, in order to solve the problems mentioned in the background art, such as the existing "long arm" structure having the ring part positioned far from the round end point and close to the 1 / 4 circle position. Combined with the characteristics of thin parts in the hot state, this leads to frequent occurrences of ring part deformation and roller climbing when force is applied to the ring part during the rolling process, thus affecting the quality of the ring part.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a short-arm clamping device for thin parts of a horizontal ring rolling mill, comprising a short-arm clamping body with a short-arm clamping arm connected to its front end via a short-arm clamping arm rotating mechanism; a clamping roller mechanism is provided at the front end of the short-arm clamping arm; a short-arm clamping arm hydraulic cylinder mechanism is provided between the top surface of the short-arm clamping body and the short-arm clamping arm; the short-arm clamping body includes a short-arm clamping body base plate, and side upright plates are respectively provided on its top surface near its two long sides; a rear upright plate is provided between the rear ends of the two side upright plates and the top surface of the short-arm clamping body base plate, and a front inclined plate is provided between the front ends of the two side upright plates, the rear upright plate, and the front inclined plate; a top plate is provided at the top of the two side upright plates, the rear upright plate, and the front inclined plate; a short-arm clamping arm rotating mechanism is provided on the top surface of the front inclined plate; a short-arm clamping arm hydraulic cylinder mechanism is provided on the top surface of the top plate; the short-arm clamping arm rotating mechanism includes two... The front inclined plate of the seat body is directly opposite a rotary bearing seat, and a common rotary shaft is provided between the two rotary bearing seats. A short clamping arm is provided on the rotary shaft. The short clamping arm includes a rectangular clamping arm welded from steel structure, and a clamping roller mechanism is provided on its bottom surface near the front end. The clamping roller mechanism includes a clamping roller seat provided on the bottom surface of the rectangular clamping arm. Two clamping roller bearing seats are directly opposite each other on the bottom surface of the clamping roller seat, and a clamping roller is provided between the two clamping roller bearing seats. The short clamping arm hydraulic cylinder mechanism includes a hydraulic cylinder bearing seat directly opposite each other on the top surface of the top plate of the seat body. A rotatable hydraulic cylinder mounting sleeve is provided between the two hydraulic cylinder bearing seats. A hydraulic cylinder body is provided through the hydraulic cylinder mounting sleeve. A hydraulic cylinder telescopic rod is built into the hydraulic cylinder body. A hydraulic cylinder pin is provided at the front end of the hydraulic cylinder telescopic rod perpendicular to it. A pin bearing seat is provided on each side of the hydraulic cylinder pin. The pin bearing seats are located on the top surface of the rectangular clamping arm.

[0009] Preferably, a base plate positioning block is provided at each of the four corners of the bottom surface of the short arm base plate, and three base plate positioning posts are provided on the base plate positioning blocks; a key is provided on the bottom surface of each of the two base plate positioning blocks near the short arm rotating mechanism.

[0010] Preferably, multiple reinforcing ribs are provided between the outer surfaces of the two seat side plates and the top surface of the short arm seat base plate.

[0011] Preferably, multiple seat support plates are provided between the two seat side uprights, the short arm seat bottom plate, and the seat top plate.

[0012] Preferably, two or more short arm devices can be used in conjunction.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The short arm has a clamping point closer to the round end of the ring, which greatly shortens the lever arm. Under the same rolling force, the bending moment on the ring is significantly reduced, the resistance to extrusion deformation is improved, and the elliptic deformation is smaller.

[0015] 2. The overall length of the short arm is shortened, reducing the moment of inertia; the combination of box-type welded steel structure with reinforcing ribs and support plates improves the overall static stiffness; and with the short arm hydraulic cylinder mechanism, the opening and closing response time is greatly shortened, the single-piece rolling cycle is shortened, and the production efficiency is significantly improved.

[0016] 3. The direction of the circumferential force is closer to the radial direction of the ring, which suppresses "roller climbing" and lateral movement. The vibration amplitude during the rolling process is reduced by 40%, and surface scratches and folding defects of the ring are basically eliminated, greatly improving the first-pass yield of the finished product.

[0017] 4. Two or more devices can be arranged in coordination to achieve multi-point encirclement, which can adapt to thin ring parts with different outer diameters and wall thicknesses; the base plate positioning block and keyway design ensure repeatability accuracy of ±0.05mm, and shorten the changeover and debugging time by 50%.

[0018] In summary, this utility model fundamentally solves the problems of large deformation, low efficiency, and poor quality in the traditional long-arm rolling of thin ring parts, and has significant economic benefits and promotional value. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of the present invention;

[0020] Figure 2 for Figure 1 Structural diagram;

[0021] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0022] Figure 4 for Figure 2 Main view;

[0023] Figure 5 for Figure 4 Bottom view;

[0024] Figure 6 for Figure 4 Sectional view of BB;

[0025] Figure 7 for Figure 4 Sectional view of CC;

[0026] Figure 8 This is an isometric drawing of the present invention;

[0027] In the diagram: Short arm seat-1, Short arm seat base plate-101, Seat base plate positioning block-102, Seat positioning column-103, Key-104, Seat side upright plate-105, Reinforcing rib-106, Seat rear upright plate-107, Seat front inclined plate-108, Seat top plate-109, Support plate-110, Short arm rotating mechanism-2, Rotary bearing seat-21, Rotary shaft-22, Short arm-3, Rectangular arm-31, Roller clamping mechanism-4, Roller clamping seat-41, Roller clamping bearing seat-42, Roller clamping-43, Short arm hydraulic cylinder mechanism-5, Hydraulic cylinder bearing seat-51, Hydraulic cylinder mounting sleeve-52, Hydraulic cylinder body-53, Hydraulic cylinder telescopic rod-54, Hydraulic cylinder pin-55, Pin bearing seat-56. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1-8 , Figure 1 This is an isometric drawing of the present invention; Figure 2 for Figure 1 Structural diagram; Figure 3 for Figure 2 Enlarged view of A in the middle; Figure 4 for Figure 2 Main view; Figure 5 for Figure 4 Bottom view; Figure 6 for Figure 4 Sectional view of BB; Figure 7 for Figure 4 Sectional view of CC; Figure 8 This is an isometric drawing of the present invention.

[0030] This utility model provides a short clamping arm device for thin parts in a horizontal ring rolling mill, used to prevent the ring from swinging when the ring rolling mill is performing ring rolling operations on thin parts; it includes a short clamping arm base 1, a short clamping arm rotating mechanism 2 is provided at the front end of the short clamping arm base 1, and a short clamping arm 3 is connected through the short clamping arm rotating mechanism 2, a clamping roller mechanism 4 is provided at the front end of the short clamping arm 3, and a short clamping arm hydraulic cylinder mechanism 5 is provided between the top surface of the short clamping arm base 1 and the short clamping arm 3.

[0031] The short arm support 1 includes a short arm support base plate 101. A base plate positioning block 102 is provided at each of the four corners of the bottom surface of the base plate 101. Three base plate positioning posts 103 are provided on each base plate positioning block 102 for positioning and installing the short arm support 1. Additionally, a key 104 is provided on the bottom surface of each of the two base plate positioning blocks 102 near the short arm rotating mechanism 2. Side support plates 105 are provided on the top surface of the short arm support base plate 101 near its two long sides. Multiple reinforcing ribs 106 are provided between the outer surfaces of the two side support plates 105 and the top surface of the short arm support base plate 101. A rear upright plate 107 is provided between the rear end of the seat and the top surface of the short arm seat base plate 101. A front inclined plate 108 is provided between the front ends of the two side upright plates 105 and the top surface of the short arm seat base plate 101, and a short arm rotating mechanism 2 is provided on the top surface of the front inclined plate 108. A top plate 109 is provided at the top ends of the two side upright plates 105, the rear upright plate 107, and the front inclined plate 108, and a short arm hydraulic cylinder mechanism 5 is provided on the top surface of the top plate 109. Multiple seat support plates 110 are provided between the two side upright plates 105, the short arm seat base plate 101, and the top plate 109 to increase the structural strength of the short arm seat 1.

[0032] The short arm rotating mechanism 2 includes two rotating bearing seats 21 that are directly opposite each other on the front inclined plate 108 of the seat body. A rotating shaft 22 is provided between the two rotating bearing seats 21, and a short arm 3 is provided on the rotating shaft 22.

[0033] The short arm 3 includes a rectangular arm 31 welded from a steel structure, and a roller mechanism 4 is provided on the bottom surface of the rectangular arm 31 near the front end.

[0034] The roller clamping mechanism 4 includes a roller clamping seat 41 disposed on the bottom surface of the rectangular clamping arm 31. Two roller clamping bearing seats 42 are disposed opposite each other on the bottom surface of the roller clamping seat 41, and a roller clamping 43 is disposed between the two roller clamping bearing seats 42.

[0035] The short-arm hydraulic cylinder mechanism 5 includes a hydraulic cylinder bearing seat 51 disposed opposite each other on the top surface of the base plate 109. A rotatable hydraulic cylinder mounting sleeve 52 is disposed between the two hydraulic cylinder bearing seats 51. A hydraulic cylinder body 53 is disposed through the hydraulic cylinder mounting sleeve 52. A hydraulic cylinder telescopic rod 54 is built into the hydraulic cylinder body 53. A hydraulic cylinder pin 55 perpendicular to the front end of the hydraulic cylinder telescopic rod 54 is disposed. A pin bearing seat 56 is disposed on each side of the hydraulic cylinder pin 55. The pin bearing seats 56 are disposed on the top surface of the rectangular arm 31, so that the roller clamping mechanism 4 can be driven to swing by the short-arm hydraulic cylinder mechanism 5.

[0036] The present invention provides a horizontal ring rolling mill for thin parts with a short clamping arm device. Two or more of these devices can be used in conjunction during the ring rolling process to apply force to the ring, ensuring uniform rotation of the ring, achieving stable rolling of the ring, and improving the quality of the rolled ring.

[0037] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A short-arm device for thin parts of a horizontal ring rolling mill, characterized in that: The system includes a short arm seat (1) with a short arm (3) connected to its front end via a short arm rotating mechanism (2). A roller mechanism (4) is provided at the front end of the short arm (3). A short arm cylinder mechanism (5) is provided between the top surface of the short arm seat (1) and the short arm (3). The short arm seat (1) includes a short arm seat base plate (101) with seat side uprights (105) respectively provided on its top surface near its two long sides. A rear upright plate (105) is provided between the rear ends of the two seat side uprights (105) and the top surface of the short arm seat base plate (101). 7) A front inclined plate (108) is provided between the front end and the top surface of the short arm seat base plate (101). A seat top plate (109) is provided at the top of the two seat side upright plates (105), the seat rear upright plate (107), and the front inclined plate (108). A short arm rotating mechanism (2) is provided on the top surface of the front inclined plate (108). A short arm hydraulic cylinder mechanism (5) is provided on the top surface of the seat top plate (109). The short arm rotating mechanism (2) includes two rotating bearing seats (21) arranged opposite each other on the front inclined plate (108). A rotating shaft (22) is shared between the rotating bearing seats (21), and a short clamping arm (3) is provided on the rotating shaft (22); the short clamping arm (3) includes a rectangular clamping arm (31) welded from steel structure and a clamping roller mechanism (4) is provided on its bottom surface near the front end; the clamping roller mechanism (4) includes a clamping roller seat (41) provided on the bottom surface of the rectangular clamping arm (31), and two clamping roller bearing seats (42) are arranged opposite each other on the bottom surface of the clamping roller seat (41), and a clamping roller (43) is shared between the two clamping roller bearing seats (42); the short clamping arm cylinder mechanism (5) includes On the top surface of the seat top plate (109), a cylinder bearing seat (51) is provided opposite to each other. A rotatable cylinder mounting sleeve (52) is provided between the two cylinder bearing seats (51). A cylinder body (53) is provided through the cylinder mounting sleeve (52). A cylinder telescopic rod (54) is built into the cylinder body (53). A cylinder pin (55) is provided perpendicular to the front end of the cylinder telescopic rod (54). A pin bearing seat (56) is provided on each side of the cylinder pin (55). The pin bearing seats (56) are provided on the top surface of the rectangular arm (31).

2. The short-arm device for thin parts of a horizontal ring rolling mill according to claim 1, characterized in that: A base plate positioning block (102) is provided at each of the four corners of the bottom surface of the short arm base plate (101), and three base plate positioning posts (103) are provided on the base plate positioning block (102); a key (104) is provided on the bottom surface of the two base plate positioning blocks (102) near the short arm rotating mechanism (2).

3. The short-arm device for thin parts of the horizontal ring rolling mill according to claim 2, characterized in that: Multiple reinforcing ribs (106) are provided between the outer surfaces of the two seat side plates (105) and the top surface of the short arm seat base plate (101).

4. The short-arm device for thin parts of the horizontal ring rolling mill according to claim 3, characterized in that: Multiple seat support plates (110) are provided between the two seat side uprights (105), the short arm seat bottom plate (101), and the seat top plate (109).

5. The horizontal ring rolling mill thin-part short-arm device according to any one of claims 1-4, characterized in that: The short arm device can be used in pairs or more in conjunction.

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