Lubricating structure for crank type flying shear arm of wire rod

Abstract

The utility model relates to a wire and bar crank type flying shear arm lubricating structure, which belongs to the technical field of crank flying shears and comprises a dry oil distributor, the input end of the dry oil distributor can be connected with a dry oil pump, and the output end of the dry oil distributor is connected with an upper lubricating branch and a lower lubricating branch so as to respectively supply oil to an upper lubricating point and a lower lubricating point; the upper lubricating branch comprises an upper fixed oil conveying pipe and an upper follow-up oil conveying pipe which are sequentially arranged in the flowing direction of lubricating oil, the upper fixed oil conveying pipe is fixed relative to the flying shear rack, and the upper follow-up oil conveying pipe is arranged along the upper connecting rod and the upper tool arm; the lower lubricating branch comprises a lower fixed oil conveying pipe and a lower follow-up oil conveying pipe which are sequentially arranged in the flowing direction of lubricating oil, the lower fixed oil conveying pipe is fixed relative to the flying shear rack, and the lower follow-up oil conveying pipe is arranged along the lower connecting rod and the lower tool arm. According to the flying shear arm lubrication device, reliable lubrication of the flying shear arm in the working state is achieved, the time for stopping for manual lubrication is greatly shortened, the manual operation cost is reduced, and the lubrication process is stable, reliable and easy to achieve.

Description

Technical Field

[0001] The utility model belongs to the technical field of crank flying shears and relates to a lubricating structure for a crank flying shear arm of a wire rod material. Background Art

[0002] Flying shear is one of the important equipment on the wire rod steel rolling production line. It is mainly used for cutting the heads, tails, lengths and breaking of rolled pieces in case of accidents. Its working performance directly affects the production efficiency of the rolling line and the quality of the product cuts.

[0003] Crank flying shears are mainly deployed in rough rolling and medium rolling areas due to their low shearing speed and strong shearing capacity. There are multiple hinge points on the arm of the crank flying shear. In order to extend the service life of the shaft sleeve and other parts in the arm, each hinge point needs to be lubricated regularly.

[0004] The existing crank-type flying scissor arm lubrication methods have the following problems: 1. Manual dry oil lubrication. This method requires the equipment to be shut down before operation, which increases labor costs and has great limitations. 2. Centralized dry oil lubrication. This method can perform lubrication work without stopping the equipment, but because the lubrication points are in motion during the operation of the flying shear, the lubrication pipeline is easy to detach from the equipment, resulting in poor lubrication effect, and may even burn out components such as the shaft sleeve, causing greater losses. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a wire rod crank type flying scissor arm lubrication structure to achieve the flying scissor arm lubrication in the working state.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] The wire rod crank type flying shear arm lubrication structure comprises a dry oil distributor whose input end can be connected to a dry oil pump, and whose output end is connected to an upper lubrication branch and a lower lubrication branch to supply oil to an upper lubrication point and a lower lubrication point respectively; the upper lubrication branch comprises an upper fixed oil pipe and an upper follower oil pipe which are arranged in sequence along the flow direction of the lubricating oil, the upper fixed oil pipe is fixed relative to the flying shear frame, and the upper follower oil pipe is arranged along the upper connecting rod and the upper knife arm; the lower lubrication branch comprises a lower fixed oil pipe and a lower follower oil pipe which are arranged in sequence along the flow direction of the lubricating oil, the lower fixed oil pipe is fixed relative to the flying shear frame, and the lower follower oil pipe is arranged along the lower connecting rod and the lower knife arm.

[0008] Optionally, the upper fixed oil pipeline and the lower fixed oil pipeline are hard oil pipelines, which are arranged on the flying shear gear housing.

[0009] Optionally, the upper lubrication point includes the hinge point between the upper connecting rod and the frame, the hinge point between the upper connecting rod and the upper knife arm, and the hinge point between the upper knife arm and the upper knife shaft; the upper follower oil pipe includes a soft oil pipe section connected to the upper fixed oil pipe to guide the lubricating oil to the hinge point between the upper connecting rod and the frame, and a plurality of hard oil pipe sections arranged on the upper connecting rod and the upper knife arm to transport the lubricating oil flowing out from the corresponding hinge points; the lower lubrication point includes the hinge point between the lower connecting rod and the frame, the hinge point between the lower connecting rod and the lower knife arm, and the hinge point between the lower knife arm and the lower knife shaft; the lower follower oil pipe includes a soft oil pipe section connected to the lower fixed oil pipe to guide the lubricating oil to the hinge point between the lower connecting rod and the frame, and a plurality of hard oil pipe sections arranged on the lower connecting rod and the lower knife arm to transport the lubricating oil flowing out from the corresponding hinge points.

[0010] Optionally, a shaft sleeve with an oil groove is provided at each lubrication point, a plurality of radial oil holes are opened at the oil groove, and the radial oil holes are connected to the articulated shaft oil passages at each lubrication point.

[0011] Optionally, a conical expansion opening is provided at the end of the radial oil hole.

[0012] Optionally, an oil cup is provided at the end of the articulated shaft at each lubrication point, and the oil cup is connected to the oil passage of the articulated shaft at the corresponding lubrication point.

[0013] Optionally, steel sleeves and copper sleeves are arranged at the hinge points of the upper knife arm, the lower knife arm and the corresponding flying shear crankshaft. The steel sleeve is fixedly connected to the flying shear crankshaft, an oil groove is provided on the steel sleeve, and a plurality of oil holes connected to the oil channel of the flying shear crankshaft are provided at the oil groove so that lubricating oil can enter the joint surface of the steel sleeve and the copper sleeve. The copper sleeve is fixedly connected to the flying shear arm, and a plurality of axial oil grooves are provided on the copper sleeve to evenly lubricate the joint surface of the steel sleeve and the copper sleeve during relative rotation.

[0014] The beneficial effects of the utility model are:

[0015] (1) When the flying shear is in normal working condition, the lubrication points on the cutter arm can be continuously lubricated, reducing the possibility of the sleeve burning due to lack of dry oil.

[0016] (2) Dry oil lubrication is automatic centralized lubrication, which reduces the cost of manual dry oil injection.

[0017] (3) By opening oil grooves and oil holes on the sleeve, the lubrication surface of the lubrication point is increased and the lubrication effect is improved.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the lubrication structure of the crank-type flying scissor arm of the wire rod of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the hinge point between the connecting rod and the frame;

[0022] Figure 3 It is a schematic diagram of the structure of the hinge point between the connecting rod and the knife arm;

[0023] Figure 4 It is a schematic diagram of the structure of the hinge point between the knife arm and the knife shaft;

[0024] Figure 5 Schematic diagram of the tool holder structure;

[0025] Figure 6 It is a schematic diagram of the steel sleeve structure;

[0026] Figure 7 This is a schematic diagram of the copper sleeve structure.

[0027] Figure numerals: dry oil distributor 1, fixed hard oil pipe 2, follow-up soft oil pipe 3, connecting rod 4, articulated shaft 5, follow-up hard oil pipe 6, knife arm 7, sleeve one 9, oil cup 10, sleeve two 11, knife seat 12, copper sleeve 13, steel sleeve 14. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0029] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] See also Figure 1 to Figure 7 A wire rod crank type flying shear arm lubrication structure includes a dry oil distributor 1 whose input end can be connected to a dry oil pump, and an output end of the dry oil distributor 1 is connected to an upper lubrication branch and a lower lubrication branch to supply oil to the upper lubrication point and the lower lubrication point respectively; the upper lubrication branch includes an upper fixed oil pipeline and an upper follower oil pipeline arranged in sequence along the flow direction of the lubricating oil, the upper fixed oil pipeline is fixed relative to the flying shear frame, and the upper follower oil pipeline is arranged along the upper connecting rod and the upper knife arm; the lower lubrication branch includes a lower fixed oil pipeline and a lower follower oil pipeline arranged in sequence along the flow direction of the lubricating oil, the lower fixed oil pipeline is fixed relative to the flying shear frame, and the lower follower oil pipeline is arranged along the lower connecting rod and the lower knife arm. The upper fixed oil pipeline and the lower fixed oil pipeline are preferably hard oil pipelines, which can be arranged on the flying shear gear box. The utility model arranges the lubrication pipeline along the connecting rod and the knife arm, can continuously lubricate the lubrication points on the knife arm when the flying shears are in normal working condition, reduces the possibility of the shaft sleeve burning due to lack of dry oil, and realizes reliable lubrication of the flying shears arm in the working condition.

[0032] Example

[0033] like Figures 1 to 7As shown, the wire rod crank type flying shear arm lubrication structure is mainly composed of a dry oil distributor 1, a lubrication pipeline, and an oil circuit arranged on the connecting rod 4 and the knife arm 7; the connecting rod 4 includes an upper connecting rod and a lower connecting rod; the knife arm 7 includes an upper knife arm and a lower knife arm; the lubrication pipeline is arranged along the flying shear gear housing, the knife arm 7 and the connecting rod 4, and does not affect the normal operation of the flying shear. The connecting rod 4 and the knife arm 7 are provided with oil holes at the designated positions, and the dry oil flows from the first lubrication point along the oil hole to the hard pipe on the connecting rod 4, and then enters the second lubrication point, and lubricates all positions in turn. The hinge position between the connecting rod 4 and the frame is the crankshaft, and the follow-up soft oil delivery pipe 3 is selected when configuring the lubrication pipeline. A copper sleeve 9 is set at the hinge point of the connecting rod and the frame, and the sleeve 9 and the connecting rod are interference fit. An oil groove is opened on the sleeve 9, and multiple radial oil holes are opened on the axis of the hinge point to facilitate better lubrication effect; at the same time, a flange is set on the edge of the sleeve 9 to play an axial positioning role for the connecting rod. The connecting rod and the knife arm hinge point are transitioned through the split sleeve 2 11. The sleeve 2 11 and the hinge shaft 5 are clearance fit to ensure that the mating surface can be fully lubricated. The sleeve 2 11 and the connecting rod are interference fit. A steel sleeve 14 and a copper sleeve 13 are set at the hinge position of the knife arm 7 and the knife shaft, wherein the steel sleeve 14 is fixed on the knife shaft by a key, and the steel sleeve 14 has an oil groove and multiple oil holes in the radial direction; the steel sleeve 14 and the copper sleeve 13 are clearance fit to ensure that there is enough dry oil on the mating surface; the copper sleeve 13 and the knife arm 7 have an interference fit, and oil holes are set in the radial direction of the copper sleeve 13. The oil holes are ensured to correspond to the oil holes on the knife arm 7 through positioning pins, and the knife shaft is supported by the knife seat 12. The hinge point of the knife arm and the knife shaft needs to withstand a large shear force. In order to avoid affecting the shear resistance of the copper sleeve 13, it is advisable to open an oil groove above the copper sleeve 13. An oil cup 10 is provided at the end of the articulated shaft at each lubrication point, and the oil cup 10 is connected to the oil passage of the articulated shaft at the corresponding lubrication point.

[0034] The lubrication process is as follows: when the flying shear is working continuously, the dry oil first reaches the dry oil distributor through the dry oil pump, and then is distributed to each lubrication point through the lubrication pipeline to complete the lubrication work, which can realize continuous lubrication of the knife arm lubrication points without stopping the machine. Specifically: the lubricating oil is first driven by the dry oil pump to the dry oil distributor 1, and the dry oil distributor 1 is divided into two paths to flow to the upper knife arm and the lower knife arm respectively. Taking the upper knife arm as an example (the lower knife arm is the same), the dry oil flows to the top of the box through the fixed hard oil pipe 2 fixed on the gear box, and then flows to the hinge point between the connecting rod 4 and the frame through the follower soft oil pipe 3. After sufficient lubrication, it flows to the follower hard oil pipe 6 on the connecting rod through the oil hole opened at the connecting rod 4, and flows to the hinge point between the connecting rod and the knife arm. After sufficient lubrication, it flows to the follower hard oil pipe 6 fixed on the knife arm through the oil hole at the end of the hinge shaft, and finally enters the hinge point between the knife arm and the knife shaft to complete the lubrication work.

[0035] The core of the utility model is to connect different lubrication points on the flying scissor arm through hard pipes and hoses to achieve centralized lubrication. The utility model can greatly reduce the time of manual lubrication during shutdown, reduce the cost of manual operation, and the lubrication process is stable and reliable and easy to implement. It should be noted that this method is not only suitable for the lubrication of flying scissor arms, but also can be used in occasions where lubrication of frequently moving lubrication points is required, such as when lubricating the bearings of pinch rollers.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. The lubrication structure of the crank type flying shear arm of the wire rod is characterized by: It includes a dry oil distributor whose input end can be connected to a dry oil pump, and the output end of the dry oil distributor is connected to an upper lubrication branch and a lower lubrication branch to supply oil to the upper lubrication point and the lower lubrication point respectively; the upper lubrication branch includes an upper fixed oil pipe and an upper follow-up oil pipe which are arranged in sequence along the flow direction of the lubricating oil, the upper fixed oil pipe is fixed relative to the flying shear frame, and the upper follow-up oil pipe is arranged along the upper connecting rod and the upper knife arm; the lower lubrication branch includes a lower fixed oil pipe and a lower follow-up oil pipe which are arranged in sequence along the flow direction of the lubricating oil, the lower fixed oil pipe is fixed relative to the flying shear frame, and the lower follow-up oil pipe is arranged along the lower connecting rod and the lower knife arm.

2. The wire rod crank type flying scissor arm lubrication structure according to claim 1 is characterized in that: The upper fixed oil delivery pipe and the lower fixed oil delivery pipe are hard oil delivery pipes and are arranged on the flying shear gear box body.

3. The wire rod crank type flying scissor arm lubrication structure according to claim 1 is characterized in that: The upper lubrication point includes the hinge point between the upper connecting rod and the frame, the hinge point between the upper connecting rod and the upper knife arm, and the hinge point between the upper knife arm and the upper knife shaft. The upper follower oil pipe includes a soft oil pipe section connected to the upper fixed oil pipe to guide the lubricating oil to the hinge point between the upper connecting rod and the frame, and a plurality of hard oil pipe sections arranged on the upper connecting rod and the upper knife arm to transport the lubricating oil flowing out from the corresponding hinge points; the lower lubrication point includes the hinge point between the lower connecting rod and the frame, the hinge point between the lower connecting rod and the lower knife arm, and the hinge point between the lower knife arm and the lower knife shaft. The lower follower oil pipe includes a soft oil pipe section connected to the lower fixed oil pipe to guide the lubricating oil to the hinge point between the lower connecting rod and the frame, and a plurality of hard oil pipe sections arranged on the lower connecting rod and the lower knife arm to transport the lubricating oil flowing out from the corresponding hinge points.

4. The wire rod crank type flying scissor arm lubrication structure according to claim 3 is characterized in that: A shaft sleeve with an oil groove is arranged at each lubrication point, and a plurality of radial oil holes are opened at the oil groove, and the radial oil holes are connected with the articulated shaft oil passage at each lubrication point.

5. The wire rod crank type flying shear arm lubrication structure according to claim 4 is characterized in that: The end of the radial oil hole is provided with a conical expansion.

6. The wire rod crank type flying shear arm lubrication structure according to claim 3 is characterized in that: An oil cup is provided at the end of the articulated shaft at each lubrication point, and the oil cup is connected to the oil passage of the articulated shaft at the corresponding lubrication point.

7. The wire rod crank type flying scissor arm lubrication structure according to claim 3 is characterized in that: Steel sleeves and copper sleeves are arranged at the hinge points of the upper knife arm, the lower knife arm and the corresponding flying shear crankshaft. The steel sleeve is fixedly connected to the flying shear crankshaft. An oil groove is arranged on the steel sleeve. A plurality of oil holes connected to the oil channel of the flying shear crankshaft are arranged at the oil groove so that lubricating oil can enter the joint surface of the steel sleeve and the copper sleeve. The copper sleeve is fixedly connected to the flying shear arm. A plurality of axial oil grooves are arranged on the copper sleeve so as to evenly lubricate the joint surface of the steel sleeve and the copper sleeve during relative rotation.

Images