A plug-in and pull-out hydraulic cylinder plug-in and pull-out mechanism of a finishing mill

Abstract

The utility model relates to hydraulic cylinder plug -in board mechanism technical field, concretely relates to a kind of plug -in board mechanism of push in and pull out hydraulic cylinder of finish rolling mill, including shell, the bottom end of shell is clamped and is equipped with plug -in board, the top end of shell one side is fixed with two groups of hinge seat, two groups of hinge seat are equipped with the rotating lever between, the middle part of rotating lever is fixed with the pressure lever of sleeve setting, the middle part of pressure lever is equipped with middle hole, lifting assembly is fixed in middle hole, and lifting assembly includes two groups of connecting hinges, the through rod of sleeve setting between two groups of connecting hinges and the lifting lever fixed in the bottom end of connecting hinge, the bottom of two groups of lifting lever is fixed with clamping ring, by pressure lever and shell hinge connection, pressure lever head and lifting lever movable connection, realize the trapezoidal structure of variable side length, to reduce the time of the influence due to weight and position bad operation, save manual labor.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder insert plate mechanism, specifically to a hydraulic cylinder insert plate mechanism for pushing in and pulling out of a finishing mill. Background Technology

[0002] In the steel rolling production process, the finishing mill, as the core equipment for achieving high-precision steel forming, directly determines rolling efficiency and product quality through its operational stability and ease of use. Among these components, the hydraulic cylinder, as a key power component for performing push-pull actions in the finishing mill, requires a plate-insertion mechanism for rapid assembly, positioning, maintenance, and repair with the main equipment. The rationality of the plate-insertion mechanism's design directly affects the hydraulic cylinder's assembly and disassembly efficiency, connection reliability, and long-term operational safety.

[0003] Currently, the mainstream hydraulic cylinder inserting plate mechanisms in finishing mills mostly adopt traditional bolt fastening or a single snap-fit ​​structure. In practical applications, these mechanisms have revealed significant defects: First, it is difficult to operate the inserting plate of the hydraulic cylinder when pushing out or pulling in the mill, and the inserting plate is not easy to pull out; Second, although the single snap-fit ​​structure simplifies the operation steps, the engagement between the snap-fit ​​and the slot is mostly planar contact. Under the radial impact force generated by the high-frequency pushing and pulling operation of the hydraulic cylinder, the snap-fit ​​is prone to deformation and slippage, causing the inserting plate to loosen, which in turn causes the hydraulic cylinder to shift its positioning. This not only affects the rolling accuracy of steel, but may also create equipment safety hazards due to component collisions.

[0004] In addition, the existing lifting and adjusting components of the insert plate mechanism generally suffer from insufficient structural rigidity: some mechanisms use a single tie rod to connect the insert plate and the operating rod, which is prone to bending due to uneven force during the lifting process, making it impossible to achieve smooth lifting and lowering of the insert plate; at the same time, the adjusting components lack a reliable locking and positioning structure, and even after the insert plate is assembled, it is prone to positional deviation under equipment vibration conditions, requiring frequent secondary adjustments, which further increases the workload of operators. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a hydraulic cylinder inserting plate mechanism for a finishing mill, which can effectively solve the problems in the existing technology.

[0007] Technical solution

[0008] This utility model provides a hydraulic cylinder insert plate mechanism for a finishing mill, including a housing. An insert plate is clamped at the bottom of the housing. Two sets of hinge seats are fixed on one side of the top of the housing. A rotating rod is sleeved between the two sets of hinge seats. A pressure rod is sleeved and fixed in the middle of the rotating rod. A central hole is opened in the middle of the pressure rod. A lifting assembly is fixed in the central hole. The lifting assembly includes two sets of connecting hinges, a through rod sleeved between the two sets of connecting hinges, and a lifting rod fixed to the bottom of the connecting hinges. A locking ring is fixed at the bottom of each set of lifting rods.

[0009] Furthermore, the top of the outer shell is provided with two sets of through slots, and the two sets of lifting rods are disposed in the through slots.

[0010] Furthermore, the top of the insert plate is fixedly connected to two sets of connecting rings, and a slot is provided at the top of the connecting ring towards the center, and the locking ring is locked in the slot.

[0011] Furthermore, the locking ring has a convex structure, and the size of the locking groove is adapted to the size of the locking ring.

[0012] Furthermore, both ends of the through rod are provided with threaded structures, and locking nuts are engaged and fixed on both sides of the connecting hinges on both sides.

[0013] Beneficial effects

[0014] In this invention, the pressure rod is hinged to the outer shell, and the head of the pressure rod is movably connected to the lifting rod, thereby realizing a trapezoidal structure with variable side length, which reduces the time affected by the weight and position of the operation and saves manual labor.

[0015] In this device, the locking ring adopts a convex structure design, and the size of the locking groove is perfectly matched with the locking ring, forming a "convex-concave interlocking" locking form. Compared with the single-point contact of traditional flat buckles, this structure significantly increases the contact area between the locking ring and the locking groove, dispersing the radial impact force generated by the hydraulic cylinder's push-pull operation, effectively avoiding buckle deformation and slippage problems, and ensuring the stability of the connection between the insert plate and the outer shell. The through rod has threaded structures at both ends, and locking nuts are engaged and fixed on the outer side of the hinges on both sides. After the insert plate is adjusted to the target position, tightening the locking nuts on both sides can double-lock the relative position of the connecting hinges and the through rod, completely eliminating the displacement of the lifting component caused by equipment vibration, further ensuring the positioning accuracy of the insert plate and the hydraulic cylinder, and avoiding the risk of equipment collision or rolling accuracy deviation caused by loose components.

[0016] In this device, the mechanism adopts a symmetrical design of "two sets of lifting rods + two sets of connecting hinges". The two sets of lifting rods are respectively inserted into two sets of through slots at the top of the outer shell, and are symmetrically connected to the central hole of the pressure rod through connecting hinges. This structure ensures that the insert plate is subjected to two sets of evenly distributed lifting forces during the lifting process, avoiding the problems of insert plate tilting or pull rod bending caused by uneven force in the traditional single pull rod structure. This ensures that the insert plate always moves smoothly along the through slots, improves the coaxiality and positioning accuracy of the insert plate assembly, and indirectly ensures the linear stability of the hydraulic cylinder push-pull action, which is conducive to improving the consistency of steel rolling quality. The pressure rod is relaxed to a naturally raised state. When the hydraulic cylinder lock head enters the insert plate, the insert plate will be raised, and then fall due to its own weight to achieve the purpose of locking the lock head. After the rolling mill pushes it into place, the pressure rod is pressed down. The pressure rod drives the lifting rod, and the lifting rod drives the insert plate, causing the insert plate to rise and disengage from the hydraulic cylinder lock head. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is an exploded view of the structure of this utility model;

[0021] Figure 4 This is an exploded view of the lifting component in this utility model.

[0022] The labels in the diagram represent: 1. Outer shell; 11. Through slot; 2. Insert plate; 21. Connecting ring; 22. Slot; 3. Hinge seat; 4. Rotating rod; 5. Pressure rod; 51. Center hole; 6. Lifting assembly; 61. Connecting hinge; 62. Lifting rod; 63. Through rod; 64. Locking ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: A hydraulic cylinder inserting and withdrawing mechanism for a finishing mill, see attached diagram. Figure 1 -Appendix Figure 4 The device includes an outer shell 1, with a insert plate 2 attached to the bottom of the outer shell 1. Two sets of hinge seats 3 are fixed to one side of the top of the outer shell 1. A rotating rod 4 is sleeved between the two sets of hinge seats 3. A pressure rod 5 is fixed to the middle of the rotating rod 4. A central hole 51 is opened in the middle of the pressure rod 5. A lifting assembly 6 is fixed inside the central hole 51. The lifting assembly 6 includes two sets of connecting hinges 61, a through rod 63 sleeved between the two sets of connecting hinges 61, and a lifting rod 62 fixed to the bottom of the connecting hinges 61. A retaining ring 64 is fixed to the bottom of each of the two sets of lifting rods 62. The pressure rod 5 is hinged to the outer shell 1, and the head of the pressure rod 5 is movably connected to the lifting rod 62, realizing a trapezoidal structure with variable side length. This reduces the time affected by the weight and position of the device, and saves manual labor.

[0026] Two sets of through slots 11 are provided at the top of the outer shell 1, and two sets of lifting rods 62 are set in the through slots 11. In this device, the locking ring 64 adopts a convex structure design, and the size of the locking groove 22 is perfectly matched with the locking ring 64, forming a "convex-concave interlocking" locking form. Compared with the single-point contact of the traditional flat buckle, this structure greatly increases the contact area between the locking ring 64 and the locking groove 22, disperses the radial impact force generated by the hydraulic cylinder push-pull operation, effectively avoids buckle deformation and slippage problems, and ensures the stability of the connection between the insert plate 2 and the outer shell 1. The through rod 63 has threaded structures at both ends, and locking nuts are engaged and fixed on the outer side of the connecting hinge 61 on both sides. When the insert plate 2 is adjusted to the target position, by tightening the locking nuts on both sides, the relative position of the connecting hinge 61 and the through rod 63 can be double-locked, completely eliminating the displacement of the lifting component 6 caused by equipment vibration, further ensuring the positioning accuracy of the insert plate 2 and the hydraulic cylinder, and avoiding the risk of equipment collision or rolling accuracy deviation caused by loose parts.

[0027] The top of the insert plate 2 is fixedly connected to two sets of connecting rings 21, and a slot 22 is provided at the top of the connecting ring 21 towards the center, and the locking ring 64 is locked in the slot 22; the locking ring 64 has a convex structure, and the size of the slot 22 is adapted to the size of the locking ring 64; both ends of the through rod 63 are provided with threaded structures, and locking nuts are engaged and fixed on both sides of the connecting hinge 61.

[0028] In this device, the mechanism adopts a symmetrical design of "two sets of lifting rods 62 + two sets of connecting hinges 61". The two sets of lifting rods 62 are respectively inserted into the two sets of through slots 11 at the top of the outer shell 1, and are symmetrically connected to the central hole 51 of the pressure rod 5 through the connecting hinges 61. This structure ensures that the insert plate 2 is subjected to two sets of evenly distributed lifting forces during the lifting process, avoiding the problem of the insert plate 2 tilting or the pull rod bending caused by uneven force in the traditional single pull rod structure. This ensures that the insert plate 2 always moves smoothly along the through slots 11, improves the coaxiality and positioning accuracy of the insert plate 2 assembly, and indirectly ensures the linear stability of the hydraulic cylinder push-pull action, which is conducive to improving the consistency of steel rolling quality. The pressure rod 5 is relaxed to a naturally raised state. When the hydraulic cylinder lock head enters the interior of the insert plate 2, the insert plate 2 will be raised, and then fall due to its own weight to achieve the purpose of locking the lock head. After the rolling mill pushes into place, the pressure rod 5 is pressed down. The pressure rod 5 drives the lifting rod 62, and the lifting rod 62 drives the insert plate 2 to rise and disengage from the hydraulic cylinder lock head.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydraulic cylinder inserting plate mechanism for a finishing mill, characterized in that, The device includes an outer shell (1), with a insert plate (2) attached to the bottom of the outer shell (1). Two sets of hinge seats (3) are fixed to one side of the top of the outer shell (1). A rotating rod (4) is sleeved between the two sets of hinge seats (3). A pressure rod (5) is sleeved and fixed in the middle of the rotating rod (4). A central hole (51) is opened in the middle of the pressure rod (5). A lifting assembly (6) is fixed in the central hole (51). The lifting assembly (6) includes two sets of connecting hinges (61), a through rod (63) sleeved between the two sets of connecting hinges (61), and a lifting rod (62) fixed to the bottom of the connecting hinges (61). A locking ring (64) is fixed to the bottom of each of the two sets of lifting rods (62).

2. The hydraulic cylinder inserting and withdrawing mechanism for a finishing mill according to claim 1, characterized in that, The top of the outer shell (1) is provided with two sets of through slots (11), and the two sets of lifting rods (62) are disposed in the through slots (11).

3. The hydraulic cylinder inserting and withdrawing mechanism for a finishing mill according to claim 1, characterized in that, The top of the insert plate (2) is fixedly connected to two sets of connecting rings (21), and a slot (22) is provided at the top of the connecting ring (21) towards the center, and the locking ring (64) is locked in the slot (22).

4. The hydraulic cylinder inserting and withdrawing mechanism for a finishing mill according to claim 3, characterized in that, The locking ring (64) has a convex structure, and the size of the locking groove (22) is adapted to the size of the locking ring (64).

5. The hydraulic cylinder inserting and withdrawing mechanism for a finishing mill according to claim 4, characterized in that, Both ends of the through rod (63) are provided with threaded structures, and locking nuts are engaged and fixed on both sides of the connecting hinge (61) on both sides.

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