Winding drum pull rod of cold rolling coiler

Abstract

The utility model relates to the field of tension recoiling machines, and discloses a cold rolling recoiling machine winding drum pull rod which comprises a rod body, the left surface of the rod body is fixedly connected with a connector, the right surface of the rod body is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a connecting sleeve, and the right surface of the connecting sleeve is provided with a shielding mechanism. And the shielding mechanism comprises a protection assembly and a fixing assembly, the protection assembly comprises a connecting rod, the left surface of the connecting rod is rotationally connected to the right surface of the connecting sleeve, a sliding groove is formed in the outer wall of the connecting rod, a sliding block is slidably connected to the inner wall of the sliding groove, and a sliding sleeve is fixedly connected to the outer wall of the sliding block. According to the utility model, one end of the rod body is wrapped by the protective sleeve, and the rotation of the rod body can be limited, so that when the expansion and contraction operation is carried out, even if the external thread on the outer wall of the threaded rod at the right end of the rod body is damaged, the rod body can be limited and cannot rotate, and the relative deviation between the rod body and the connecting sleeve can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of tension winding machines, and in particular to a winding rod for a cold rolling winding machine. Background Technology

[0002] Tension coilers are widely used in reversible or tandem continuous cold rolling production lines and in post-cold rolling processing lines such as continuous annealing lines, continuous galvanizing lines, recoiling lines, or finishing lines. These coilers not only coil strip steel but also generate tension in the strip, ensuring stable production. High-tension coiling results in tighter and neater coils. During the cold rolling and post-cold rolling processing processes, it is necessary to maintain both front and rear tension. This tension reduces the pressure of the strip steel on the rollers and minimizes strip warping, thus improving strip surface quality and overall production efficiency.

[0003] The tie rod is an important component of the coiler. It expands and contracts the coiler drum by being pulled by a rotating hydraulic cylinder. The tie rod is usually directly connected to the hydraulic cylinder by a thread. However, since the connection between the tie rod and the hydraulic cylinder needs to withstand a large tensile force each time it is pulled, the thread at this point is prone to damage. This can cause the tie rod to spin, affecting the synchronization rate of the tie rod transmission, resulting in transmission errors and affecting the normal expansion and contraction of the device. To address this problem, a tie rod for a cold rolling coiler drum is proposed. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a cold rolling coiler drum tie rod, which aims to improve the problem in the prior art that "because the connection between the tie rod and the hydraulic cylinder is subjected to large tensile and thrust forces, the threads in this part are easily damaged, which leads to the tie rod spinning and affects the normal expansion and contraction of the device".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cold rolling coiler drum pull rod, comprising a rod body, a connector fixedly connected to the left surface of the rod body, a threaded rod fixedly connected to the right surface of the rod body, a connecting sleeve threadedly connected to the outer wall of the threaded rod, a shielding mechanism provided on the right surface of the connecting sleeve, the shielding mechanism comprising a protective component and a fixing component, the protective component comprising a connecting rod, the left surface of the connecting rod rotatably connected to the right surface of the connecting sleeve, a sliding groove provided on the outer wall of the connecting rod, a slider slidably connected to the inner wall of the sliding groove, a sliding sleeve fixedly connected to the outer wall of the slider, a protective sleeve fixedly connected to the left surface of the sliding sleeve, a limit groove provided on the outer wall of the rod body near the right end, and the protective sleeve sleeved on the outer wall of the rod body.

[0006] As a further description of the above technical solution:

[0007] The fixing component includes a first insert block, which is slidably connected to the inner wall of the connecting rod. The outer wall of the protective sleeve is provided with a first fixing groove, and the outer wall of the sliding sleeve is provided with a second fixing groove.

[0008] As a further description of the above technical solution:

[0009] A sliding plate is fixedly connected to the lower surface of the first insert, and the sliding plate slides on the inner wall of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] A second insert is fixedly connected to the upper surface of the skateboard near the right end. The second insert passes through and is slidably connected to the outer wall of the connecting rod.

[0012] As a further description of the above technical solution:

[0013] A return spring is fixedly connected to the upper surface of the slide plate, and the upper surface of the return spring is fixedly connected to the inner wall of the connecting rod.

[0014] As a further description of the above technical solution:

[0015] The slider and slide groove are provided in multiple sets, and the multiple sets of sliders and slide grooves are symmetrically arranged with the center line of the connecting rod as the axis of symmetry.

[0016] As a further description of the above technical solution:

[0017] The left surface of the rod is provided with an angle, and the connection between the rod and the connector is provided with a slope.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the connector is provided with a connecting groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by using a protective sleeve to wrap one end of the rod, the rotation of the rod can be restricted. Thus, during the expansion and contraction operation, even if the external thread on the outer wall of the right end of the rod is damaged, the rod will be restricted from rotating. This can reduce the relative deviation between the rod and the connecting sleeve, ensure the stability of the rod transmission, and keep the whole device working normally.

[0022] 2. In this utility model, by setting an oblique angle and a slope, the connection between the rod and the connector can form a stepped structure. In this way, the overall device can prevent stress concentration at this position when subjected to tensile and thrust forces, thereby improving the tensile strength and fatigue strength of the overall device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional structural disassembly diagram of the protective component in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the connecting rod in this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the left side of the rod body in this utility model;

[0027] Figure 5 This is a side view of the three-dimensional structure of the protective sleeve in this utility model.

[0028] Legend:

[0029] 1. Rod body; 2. Connector; 3. Connecting groove; 4. Protective component; 41. Connecting rod; 42. Sliding sleeve; 43. Sliding block; 44. Sliding groove; 45. Protective sleeve; 46. Limiting groove; 5. Connecting sleeve; 6. Fixing component; 61. Fixing groove one; 62. Fixing groove two; 63. Insert block one; 64. Insert block two; 65. Slide plate; 66. Return spring; 7. Threaded rod; 8. Angled angle; 9. Slope. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a cold rolling coiler drum pull rod, including a rod body 1 for supporting the overall device. A connector 2 for connecting the coiler's expansion and contraction components is fixedly connected to the left surface of the rod body 1. When the rod body 1 moves left or right, it can cause the expansion and contraction components to expand or contract. Since the expansion and contraction components are existing technology and can be implemented by those skilled in the art, they will not be described in detail here. A threaded rod 7 for fixing the rod body 1 is fixedly connected to the right surface of the rod body 1. A connecting sleeve 5 for connecting the threaded rod 7 is threadedly connected to the outer wall of the threaded rod 7. A blocking mechanism for fixing the rod body 1 is provided on the right surface of the connecting sleeve 5. The blocking mechanism includes a protective component 4 for limiting the rotation of the rod body 1 and a fixing component 6. The protective component 4 includes a connecting rod for supporting the connecting sleeve 5. 41. The left surface of the connecting rod 41 is rotatably connected to the right surface of the connecting sleeve 5. The right surface of the connecting rod 41 is directly connected to the end of the hydraulic cylinder output shaft. By starting the hydraulic cylinder, the connecting rod 41 can be moved left and right. The outer wall of the connecting rod 41 is provided with a groove 44 for limiting the movement of the slider 43. The inner wall of the groove 44 is slidably connected to a slider 43 for supporting the movement of the sliding sleeve 42. The outer wall of the slider 43 is fixedly connected to a sliding sleeve 42 for driving the movement of the protective sleeve 45. The left surface of the sliding sleeve 42 is fixedly connected to a protective sleeve 45 for limiting the rotation of the rod 1. The outer wall of the rod 1 is provided with a limit groove 46 near the right end. The protective sleeve 45 is sleeved on the outer wall of the rod 1. The inner wall of the protective sleeve 45 can fit with the limit groove 46, thus limiting the rotation of the rod 1.

[0032] Reference Figure 2 , Figure 3 and Figure 5 The fixing component 6 includes a first insert 63 for restricting the movement of the sliding sleeve 42. The first insert 63 passes through and is slidably connected to the inner wall of the connecting rod 41. The outer wall of the protective sleeve 45 is provided with a first fixing groove 61 for accommodating the first insert 63. When the sliding sleeve 42 is in the rightmost movable position, the first insert 63 is just in contact with the inner wall of the first fixing groove 61. The outer wall of the sliding sleeve 42 is provided with a second fixing groove 62 for fixing the sliding sleeve 42. When the first insert 63 is in the inner wall of the second fixing groove 62, the sliding sleeve 42 will be restricted from moving left or right. The lower surface of the first insert 63 is fixedly connected to a device for driving the first insert 63 to move upward and reset. The slide plate 65 slides on the inner wall of the connecting rod 41 and can move up and down on the inner wall of the connecting rod 41. The upper surface of the slide plate 65 is fixedly connected to the right end of the insertion block 64 for fixing the sliding sleeve 42. When the sliding sleeve 42 is in the rightmost movable position, the fixing groove 62 is just aligned with the insertion block 64. The insertion block 64 passes through and is slidably connected to the outer wall of the connecting rod 41. The upper surface of the slide plate 65 is fixedly connected to the return spring 66 for pulling the slide plate 65. The upper surface of the return spring 66 is fixedly connected to the inner wall of the connecting rod 41 and the return spring 66 will pull the return spring 66 upward at all times.

[0033] Reference Figure 1 - Figure 3 Multiple sets of sliders 43 and slide grooves 44 are provided. The multiple sets of sliders 43 and slide grooves 44 are symmetrically arranged with the center line of the connecting rod 41 as the axis of symmetry. The multiple sets of sliders 43 can support the sliding sleeve 42 to move stably left and right. The left surface of the rod 1 is provided with an angle 8, and the connection between the rod 1 and the connector 2 is provided with a slope 9. By designing the angle 8 and slope 9, when the whole device is subjected to tension or thrust, stress can be prevented from accumulating at this point, thus improving the tensile strength and fatigue strength of the whole device. The outer wall of the connector 2 is provided with a connecting groove 3.

[0034] Working principle: When it is necessary to fix the rod 1, first align the threaded rod 7 at the right end of the rod 1 with the connecting sleeve 5, then rotate the connecting sleeve 5 to drive the threaded rod 7 into the inner wall of the connecting sleeve 5. Then press down on the second insert 64 to move the second insert 64 downward and disengage it from the inner wall of the second fixing groove 62. At the same time, the second insert 64 will squeeze the sliding plate 65 and force it to move downward. The downward movement of the sliding plate 65 will drive the first insert 63 downward and disengage it from the inside of the first fixing groove 61. Then, move the sliding sleeve 42 to the left to drive the protective sleeve 45 to fit onto the outer wall of the rod 1. When the second fixing groove 62 moves to the left and aligns with the first insert 63, the return spring 66 will pull the sliding plate 65 upward to drive the first insert 63 into the inside of the second fixing groove 62. At this time, the sliding sleeve 42 will be fixed and cannot move. At this time, the rod 1 will be restricted from rotating, thus preventing the rod 1 from rotating on its own.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold rolling coiler drum tie rod, comprising a rod body (1), characterized in that: A connector (2) is fixedly connected to the left surface of the rod (1), and a threaded rod (7) is fixedly connected to the right surface of the rod (1). A connecting sleeve (5) is threadedly connected to the outer wall of the threaded rod (7). A shielding mechanism is provided on the right surface of the connecting sleeve (5). The shielding mechanism includes a protective component (4) and a fixing component (6). The protective component (4) includes a connecting rod (41). The left surface of the connecting rod (41) is rotatably connected to the right surface of the connecting sleeve (5). A sliding groove (44) is provided on the outer wall of the connecting rod (41). A slider (43) is slidably connected to the inner wall of the sliding groove (44). A sliding sleeve (42) is fixedly connected to the outer wall of the slider (43). A protective sleeve (45) is fixedly connected to the left surface of the sliding sleeve (42). A limit groove (46) is provided on the outer wall of the rod (1) near the right end. The protective sleeve (45) is sleeved on the outer wall of the rod (1).

2. The cold rolling coiler drum tie rod according to claim 1, characterized in that: The fixing component (6) includes a first insert (63), which is slidably connected to the inner wall of the connecting rod (41). The outer wall of the protective sleeve (45) is provided with a first fixing groove (61), and the outer wall of the sliding sleeve (42) is provided with a second fixing groove (62).

3. The cold rolling coiler drum tie rod according to claim 2, characterized in that: The lower surface of the insert (63) is fixedly connected to a sliding plate (65), which slides on the inner wall of the connecting rod (41).

4. The cold rolling coiler drum tie rod according to claim 3, characterized in that: The upper surface of the slide plate (65) is fixedly connected to the right end of the insert block two (64), which is slidably connected to the outer wall of the connecting rod (41).

5. A cold rolling coiler drum tie rod according to claim 3, characterized in that: A return spring (66) is fixedly connected to the upper surface of the slide plate (65), and the upper surface of the return spring (66) is fixedly connected to the inner wall of the connecting rod (41).

6. The cold rolling coiler drum tie rod according to claim 1, characterized in that: Multiple sets of sliders (43) and slides (44) are provided, and the multiple sets of sliders (43) and slides (44) are symmetrically arranged with the center line of the connecting rod (41) as the axis of symmetry.

7. The cold rolling coiler drum tie rod according to claim 1, characterized in that: The left surface of the rod (1) is provided with an oblique angle (8), and the connection between the rod (1) and the connector (2) is provided with a slope (9).

8. The cold rolling coiler drum tie rod according to claim 1, characterized in that: The outer wall of the connector (2) is provided with a connecting groove (3).

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