Crank rocker type flying shear loading and air cutting device and crank rocker type flying shear

Abstract

The utility model relates to the technical field of metallurgical engineering, in particular to a crank rocker type flying shear loading and air cutting device and a crank rocker type flying shear. A crank rocker type flying shear loading and air cutting device comprises a power output mechanism, and the power output mechanism is connected with an eccentric shaft mechanism and used for driving the eccentric shaft mechanism to rotate; the number of the eccentric shaft mechanisms is at least two, and the eccentric shaft mechanisms are used for driving a lower shear blade of the flying shear to be close to or away from an upper shear blade of the flying shear; the connecting shaft is used for enabling the plurality of eccentric shaft mechanisms to move synchronously; and the limiting mechanism is connected with the eccentric shaft mechanism, and the limiting mechanism is used for limiting the rotating angle of the eccentric shaft mechanism. According to the technical scheme, the opening degree of the upper shear blade and the lower shear blade can be adjusted to adapt to strips of more sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical engineering, and in particular to a crank rocker type flying shear loading and air cutting device and a crank rocker type flying shear. Background Art

[0002] Flying shears are mainly used to shear the rolled pieces in motion, and can complete tasks such as cutting heads, cutting tails, breaking, sampling, and cutting to length. When the flying shear is working, the rolled pieces do not stop, which simplifies the equipment of the production line and improves productivity. With the development of continuous production lines, flying shears have been used more and more widely. For different production tasks of flying shears, the required shear blade gap is often different.

[0003] During the flying shear movement, the upper shear blade movement trajectory remains unchanged. Whether shearing is performed depends on whether the upper and lower shear blades meet. By adjusting the swinging movement trajectory of the lower shear body, changing the shear blade overlap area, and correspondingly changing the number of upper and lower shear blades meeting, the flying shear loading and air cutting can be adjusted. Adjusting the opening and closing degree of the upper and lower shear blades to adapt to more sizes of strips, reduce the failure rate of the flying shear, and improve the operating stability of the flying shear are issues that need to be solved urgently. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, in a first aspect of the present disclosure, a crank rocker type flying shear loading and air cutting device is provided, comprising:

[0006] A power output mechanism, the power output mechanism is connected to the eccentric shaft mechanism and is used to drive the eccentric shaft mechanism to rotate;

[0007] An eccentric shaft mechanism, wherein the number of the eccentric shaft mechanisms is at least two, and the eccentric shaft mechanism is used to drive the lower cutting edge of the flying shear to move closer to or away from the upper cutting edge of the flying shear;

[0008] A connecting shaft, the connecting shaft is used to make the multiple eccentric shaft mechanisms move synchronously;

[0009] A limiting mechanism is connected to the eccentric shaft mechanism, and the limiting mechanism is used to limit the rotation angle of the eccentric shaft mechanism.

[0010] In a feasible implementation manner, the number of the eccentric shaft mechanisms is set to two, and the two eccentric shaft mechanisms are symmetrically arranged at both ends of the connecting shaft and are key-connected to the end portions of the connecting shaft.

[0011] In a feasible implementation manner, the power output mechanism includes:

[0012] A support portion, the support portion being connected to a frame of the flying shear;

[0013] A swing cylinder, wherein the swing cylinder is arranged on the support portion;

[0014] A universal coupling, one end of which is connected to the shaft head of the swing cylinder, and the other end of which is key-connected to the eccentric shaft mechanism;

[0015] A protective cover is arranged on the supporting portion, and the protective cover is arranged at the connection between the universal coupling and the swing cylinder.

[0016] In a feasible implementation manner, the eccentric shaft mechanism includes:

[0017] An eccentric shaft, used for applying a reciprocating force to the lower shearing blade of the flying shear;

[0018] A first support cover, wherein the first support cover is arranged at a shaft head of the eccentric shaft away from one end of the connecting shaft;

[0019] A second support cover is arranged at a shaft shoulder of the eccentric shaft close to one end of the connecting shaft.

[0020] In a feasible implementation manner, a self-lubricating sleeve is arranged between the second support cover and the eccentric shaft.

[0021] In a feasible implementation manner, the self-lubricating bushing is configured as tin bronze with embedded graphite.

[0022] In a feasible implementation manner, the limiting mechanism includes:

[0023] A stopper, the stopper being connected to the shaft head on the side where the eccentric shaft is connected to the coupling shaft;

[0024] An adjusting member is used to adjust a stopping range of the stopping member with respect to the eccentric shaft.

[0025] In a feasible implementation manner, the stop member is configured as a stop rod, the adjusting member is configured as a top screw, the stop rod has a rod head, and the top screw abuts against the rod head.

[0026] In a feasible implementation manner, the shaft head of the eccentric shaft is connected to the coupling shaft via a double key.

[0027] In a second aspect of the present disclosure, a crank rocker flying shear is provided, comprising the above-mentioned crank rocker flying shear loading and air cutting device.

[0028] Compared with the prior art, the present invention includes at least the following beneficial effects: the present invention applies a force to the eccentric shaft mechanism through a power output mechanism, thereby enabling the lower shear blade of the flying shear to be loaded, and at least two eccentric shaft mechanisms are provided to better adapt to the loading of lower shear blades of different sizes, and the connecting shaft is used to make the multiple eccentric shaft mechanisms move synchronously, so that the forces acting on the lower shear blades in different directions are the same to ensure the stability of the flying shear operation, and the limiting mechanism is connected to the eccentric shaft mechanism and limits the rotation angle of the eccentric shaft mechanism, thereby adjusting the opening and closing degree of the upper and lower shear blades to adapt to strips of more sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] In order to more clearly illustrate the embodiments of the present invention 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 It is a three-dimensional structural schematic diagram of multiple eccentric shaft mechanisms, connecting shafts and power output mechanisms disclosed in the present invention;

[0033] Figure 2 It is a schematic cross-sectional structure diagram of multiple eccentric shaft mechanisms, connecting shafts and power output mechanisms disclosed in the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the stopper and the adjusting member disclosed in the present invention.

[0035] in, Figures 1 to 3 The correspondence between the reference numerals and the component names is as follows: 1-power output mechanism; 11-supporting part; 12-swinging cylinder; 13-universal coupling; 14-protective cover; 2-eccentric shaft mechanism; 21-eccentric shaft; 22-first support cover; 23-second support cover; 3-limiting mechanism; 31-stopper; 331-rod head; 32-adjusting member; 4-connecting shaft. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0038] At present, during the flying shear movement, the upper shear blade movement trajectory remains unchanged, and whether shearing is performed depends on whether the upper and lower shear blades meet. By adjusting the swing movement trajectory of the lower shear body, changing the shear blade overlap area, and correspondingly changing the number of upper and lower shear blades meeting, the flying shear loading and air cutting can be adjusted. Adjusting the opening and closing degree of the upper and lower shear blades to adapt to more sizes of strips and reduce the failure rate of the flying shear is an urgent problem to be solved.

[0039] Based on this, an embodiment of the present disclosure provides a crank rocker type flying shear loading and air cutting device. The present disclosure applies a force to the eccentric shaft mechanism through a power output mechanism, so that the lower shear blade of the flying shear is loaded, and at least two eccentric shaft mechanisms are arranged to better adapt to the loading of lower shear blades of different sizes, and the connecting shaft is used to make the multiple eccentric shaft mechanisms move synchronously, so that the force on the lower shear blade in different directions is the same to ensure the stability of the flying shear operation, and the limiting mechanism is connected to the eccentric shaft mechanism and limits the rotation angle of the eccentric shaft mechanism, so as to adjust the opening and closing degree of the upper and lower shear blades to adapt to more sizes of strips.

[0040] The crank rocker type flying shear loading and air cutting device is described in detail below through a specific embodiment:

[0041] Reference Figures 1 to 3 As shown, in the first aspect of the present disclosure, a crank rocker flying shear loading and air cutting device is provided, including a power output mechanism 1, which is connected to an eccentric shaft mechanism 2 and is used to drive the eccentric shaft mechanism 2 to rotate; an eccentric shaft mechanism 2, the number of the eccentric shaft mechanism 2 is at least two, and the eccentric shaft mechanism 2 is used to drive the lower shear blade of the flying shear to move closer to or away from the upper shear blade of the flying shear; a connecting shaft 4, which is used to make multiple eccentric shaft mechanisms 2 move synchronously; a limiting mechanism 3, which is connected to the eccentric shaft mechanism 2, and the limiting mechanism 3 is used to limit the rotation angle of the eccentric shaft mechanism 2.

[0042] The present invention applies a force to the eccentric shaft mechanism 2 through the power output mechanism 1, so that the lower shear blade of the flying shear is loaded, and at least two eccentric shaft mechanisms 2 are provided to better adapt to the loading of lower shear blades of different sizes, and the connecting shaft 4 is used to make multiple eccentric shaft mechanisms move synchronously, so that the forces of the lower shear blades in different directions are the same to ensure the stability of the flying shear operation, and the limiting mechanism is connected to the eccentric shaft mechanism and limits the rotation angle of the eccentric shaft mechanism, so as to adjust the opening and closing degree of the upper and lower shear blades to adapt to more sizes of strips. It can be understood that the connection method between the flying shear and the eccentric shaft mechanism of the present invention and the eccentric shaft can drive the lower shear blade of the flying shear to cooperate with the upper shear blade are common knowledge in the field and will not be repeated here. The present application aims to use the eccentric shaft as a transmission method to perform simple and effective reciprocating motion, achieve better matching of driving characteristics, and reduce structural parts to reduce the failure rate.

[0043] In some embodiments, the number of the eccentric shaft mechanisms 2 is set to two, and the two eccentric shaft mechanisms 2 are symmetrically arranged at both ends of the connecting shaft 4.

[0044] In this embodiment, the number of the eccentric shaft mechanisms 2 of the present disclosure is set to two, and the two eccentric shaft mechanisms 2 are symmetrically arranged at both ends of the connecting shaft 4. Specifically, the eccentric shaft mechanism 2 can be arranged at the connecting shaft body near the end of the connecting shaft 4, or at the end of the connecting shaft 4. The present disclosure specifically arranges the eccentric shaft mechanism 2 at the end of the connecting shaft 4, and realizes the transmission of torque by key connection.

[0045] In some embodiments, the power output mechanism 1 includes a support portion 11, which is connected to the frame of the flying shear; a swing cylinder 12, which is arranged on the support portion 11; a universal coupling 13, one end of the universal coupling 13 is connected to the shaft head of the swing cylinder 12, and the other end is connected to the eccentric shaft mechanism 2 by a key; a protective cover 14, which is arranged on the support portion 11, and the protective cover 14 is arranged at the connection between the universal coupling 13 and the swing cylinder 12.

[0046] In this embodiment, the power output mechanism 1 includes a support portion 11, which is connected to the frame of the flying shear to prevent other components of the power output mechanism 1, specifically, Figure 1 The support part can be arranged on the side wall of the frame as shown. The swing cylinder 12 is arranged on the support part 11 and is connected with the universal coupling 13 to transmit torque to the eccentric shaft mechanism 2 through the connection of the parts. Further, the universal coupling 13 can be connected with the eccentric shaft 21 in the eccentric shaft mechanism 2 through a spline, thereby ensuring the stability and strength of the torque transmission.

[0047] In some embodiments, the eccentric shaft mechanism 2 includes an eccentric shaft 21, which is used to apply a reciprocating force to the lower shear blade of the flying shear; a first support cover 22, which is arranged at the shaft head of the eccentric shaft 21; and a second support cover 23, which is arranged at the shaft shoulder of the eccentric shaft 21. Furthermore, a self-lubricating sleeve is arranged between the second support cover 23 and the eccentric shaft 21. Specifically, the self-lubricating sleeve is configured as tin bronze with embedded graphite. The self-lubricating sleeve improves the overall load-bearing capacity of the device, and its wear resistance is also greatly improved compared with ordinary sleeves, which effectively improves the service life of the device.

[0048] In some embodiments, the limiting mechanism 3 includes a stopper 31 , which is on the shaft head on the side where the eccentric shaft 21 is connected to the connecting shaft 4 ; and an adjusting member 32 , which is used to adjust the stopping range of the stopper 31 for the eccentric shaft 21 .

[0049] In this embodiment, the stopper 31 of the present disclosure can be a baffle, a buckle or other structures. For example, the baffle can achieve stopping by blocking the rotation range of the eccentric shaft, so that the eccentric shaft 21 drives the lower shear blade to approach the upper shear blade, so that the opening (gap) between the lower shear blade and the upper shear blade changes, thereby adapting to strips of different sizes. In order to improve the adaptability, the stopper 31 should have an adjustable stopper range. The present disclosure sets an adjustment member 32 to adjust the stopper range of the stopper 31. For example, a bearing is set at one end of the baffle to adjust the angle of the baffle, and other components that can achieve a fixing effect such as bolts are used to lock the rotation of the bearing, thereby achieving the adjustment of the stopper 31.

[0050] In some embodiments, the stopper 31 is configured as a stop rod, the adjusting member 32 is configured as a push screw, the stop rod has a rod head 331 , and the push screw abuts against the rod head 331 .

[0051] In this embodiment, if Figure 3 As shown, the stopper 31 of the present disclosure is configured as a stopper rod, and the stopper rod includes a stopper rod body and a rod head 331. The stopper rod body is sleeved on the shaft head of the eccentric shaft 21 and is fixed to the shaft head, that is, when the shaft head rotates, the relative position of the shaft head and the stopper rod body does not change, and the rod head 331 is fixedly connected to the stopper rod body. The rod head 331 will swing when the shaft head rotates. At this time, the swing range of the rod head 331 is limited by the top screw, thereby limiting the rotation range of the eccentric shaft. The adjustment function is achieved by adjusting the length of the top screw to change the swing range of the rod head 331.

[0052] In some embodiments, the limiting mechanism 3 is fixedly connected to the connecting shaft 4 , and the eccentric shaft 21 is double-keyed to the limiting mechanism 3 .

[0053] In this embodiment, the limiting mechanism 3 of the present disclosure is fixedly connected to the connecting shaft 4 by bolts, and the limiting mechanism 3 is sleeved on the eccentric shaft 21 and connected by a double key, thereby improving the stability of torque transmission.

[0054] In a second aspect of the present disclosure, a crank rocker flying shear is provided, comprising the above-mentioned crank rocker flying shear loading and air cutting device.

[0055] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0056] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present disclosure.

[0057] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A crank rocker type flying shear loading and air cutting device, characterized in that: include: A power output mechanism, the power output mechanism is connected to the eccentric shaft mechanism and is used to drive the eccentric shaft mechanism to rotate; An eccentric shaft mechanism, wherein the number of the eccentric shaft mechanisms is at least two, and the eccentric shaft mechanism is used to drive the lower cutting edge of the flying shear to move closer to or away from the upper cutting edge of the flying shear; A connecting shaft, the connecting shaft is used to make the multiple eccentric shaft mechanisms move synchronously; A limiting mechanism is connected to the eccentric shaft mechanism, and the limiting mechanism is used to limit the rotation angle of the eccentric shaft mechanism.

2. The crank rocker type flying shear loading and air cutting device according to claim 1 is characterized in that: The number of the eccentric shaft mechanisms is set to two, and the two eccentric shaft mechanisms are symmetrically arranged at both ends of the connecting shaft.

3. The crank rocker type flying shear loading and air cutting device according to claim 1 is characterized in that: The power output mechanism comprises: A support portion, the support portion being connected to a frame of the flying shear; A swing cylinder, wherein the swing cylinder is arranged on the support portion; A universal coupling, one end of which is connected to the shaft head of the swing cylinder, and the other end of which is key-connected to the eccentric shaft mechanism; A protective cover is arranged on the supporting portion, and the protective cover is arranged at the connection between the universal coupling and the swing cylinder.

4. The crank rocker type flying shear loading and air cutting device according to claim 1 is characterized in that: The eccentric shaft mechanism comprises: An eccentric shaft, used for applying a reciprocating force to the lower shearing blade of the flying shear; A first support cover, wherein the first support cover is arranged at a shaft shoulder of the eccentric shaft away from one end of the connecting shaft; A second support cover is arranged at a shaft shoulder of the eccentric shaft close to one end of the connecting shaft.

5. The crank rocker type flying shear loading and air cutting device according to claim 4 is characterized in that: A self-lubricating sleeve is arranged between the second supporting cover and the eccentric shaft.

6. The crank rocker type flying shear loading and air cutting device according to claim 5 is characterized in that: The self-lubricating bushing is configured as tin bronze with embedded graphite.

7. The crank rocker type flying shear loading and air cutting device according to claim 4 is characterized in that: The limiting mechanism comprises: A stopper, the stopper being connected to the shaft head on one side where the eccentric shaft and the coupling are connected; An adjusting member is used to adjust a stopping range of the stopping member with respect to the eccentric shaft.

8. The crank rocker type flying shear loading and air cutting device according to claim 7 is characterized in that: The stopper is arranged as a stop rod, the adjusting member is arranged as a top screw, the stop rod has a rod head, and the top screw abuts against the rod head.

9. The crank rocker type flying shear loading and air cutting device according to claim 4, characterized in that: The limiting mechanism is fixedly connected to the connecting shaft, and the eccentric shaft is double-key connected to the limiting mechanism.

10. A crank rocker type flying shear, characterized in that: A crank rocker flying shear loading and air cutting device comprising any one of claims 1 to 9.

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