A main gear pair oil drip lubrication structure

Abstract

The present invention belongs to the technical field of press gear lubrication, and relates to a main gear pair drip oil lubrication structure, comprising an oil inlet block connected to an upper crossbeam plate and oil drip pipes arranged on the left and right sides of the oil inlet block, corresponding to the left main gear pair and the right main gear pair respectively. The bottom of the oil drip pipe is provided with a plurality of oil drip hole groups spaced along its length direction, and each of the oil drip hole groups includes a plurality of oil drip holes spaced along the width direction of the oil drip pipe, and the oil drip holes are connected to the main oil distributor through the oil inlet block. The present invention provides a main gear pair drip oil lubrication structure with a simple structure, stability and reliability, and a wide lubrication surface, which fully ensures that the left and right gear pairs of a double-point structure press can obtain good drip oil lubrication, dissipates the heat generated by gear meshing in time, reduces gear meshing wear, increases gear life, reduces meshing noise, and improves the bearing capacity and working quality of the gear. It has great market value and deserves to be widely promoted and applied.

Description

Technical Field

[0001] The invention belongs to the technical field of press gear lubrication, and in particular relates to an oil drip lubrication structure for a main gear pair. Background Art

[0002] Gear drive is the most important component in the transmission system of a mechanical press. In crank presses, gear transmission plays a role in transmitting motion, torque, and speed reduction. Gears in presses are subject to impact loads, resulting in significant wear. To reduce wear, large presses with large work surfaces and high tonnage utilize a double-sided drive system, which improves the stress conditions on gears and shafts. Furthermore, timely lubrication of meshing gears is essential for proper gear operation. Good lubrication improves gear surface smoothness, dissipates meshing heat, increases gear life, and reduces meshing noise, thereby ensuring that the machine tool remains in optimal operating condition.

[0003] Generally, transmission gear lubrication is divided into thin oil lubrication and thick oil lubrication. The lubricant used in thick oil lubrication is grease, which has poor fluidity. The gear contact surface must be fully coated, and the grease is easily melted by heat when the gear meshing movement heats up, and the lubrication effect will be greatly reduced. Manual operation is required to apply it regularly, which is troublesome to maintain. In addition, the grease has high viscosity, which can easily allow impurities to be contaminated on the tooth surface, thereby damaging the gear meshing surface; thin oil lubrication mainly uses an oil separator for circulating oil supply, and the gears have good heat dissipation and high cleanliness. Generally, the simple operation is to connect the oil pipe to the upper beam cover and point the oil pipe mouth to the gear meshing surface. This installation method can only achieve gear meshing point lubrication, and cannot achieve surface lubrication in the length and width directions of the gear. In addition, the oil pipe is easy to shake when the machine tool is working, and the oil drip pipe may deviate from the gear meshing surface, resulting in poor gear lubrication. It is also possible that the oil pipe will loosen and fall onto the gear meshing surface, causing the risk of gear meshing failure. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that gear lubrication in the prior art is relatively limited and unstable, and to provide a main gear pair oil drip lubrication structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a main gear pair oil drip lubrication structure, including an oil inlet block connected to the upper crossbeam plate and oil drip pipes arranged on the left and right sides of the oil inlet block corresponding to the left main gear pair and the right main gear pair respectively, and a plurality of oil drip hole groups are spaced apart along the length direction of the bottom of the oil drip pipe, each of the oil drip hole groups includes a plurality of oil drip holes spaced apart along the width direction of the oil drip pipe, and the oil drip holes are connected to the main oil distributor through the oil inlet block.

[0006] Preferably, the oil inlet block is fixedly connected to the upper crossbeam plate by bolts and Lodilock anti-loosening washers.

[0007] Preferably, the main oil distributor is connected to the oil inlet of the oil inlet block, the oil dripping pipe is threadedly connected to the oil inlet block, and the oil dripping pipe is communicated with the main oil distributor through the oil inlet block.

[0008] Preferably, one end of the oil dripping tube is sealedly connected to the oil inlet block through an external support tube, and the other end is sealedly connected to the sealing plate, and the external support tube sealing sleeve is arranged on the outside of the oil dripping tube.

[0009] Preferably, the oil dripping pipe is a cylindrical pipe, and the oil dripping holes of each oil dripping hole group are spaced apart along the circumferential direction of the oil dripping pipe.

[0010] Preferably, there are three oil dripping hole groups in total, and each of the oil dripping hole groups includes three oil dripping holes.

[0011] Preferably, the angle between two adjacent oil drip holes in each oil drip hole group is 20°.

[0012] Preferably, the diameter of the oil dripping hole is 1.5 mm.

[0013] After adopting the above technical solution, the main gear pair oil drip lubrication structure provided by the present invention has the following beneficial effects:

[0014] The present invention fully ensures that the left and right gear pairs of the double-point structure press can be well lubricated by dripping oil through the design of the left and right groups of oil dripping pipes, can dissipate the heat generated by the gear meshing in time, reduce the gear meshing wear, increase the gear life, reduce the meshing noise, and improve the load-bearing capacity and working quality of the gears; through the distribution design of the oil dripping holes, on the one hand, it fully ensures that the left and right main gear pairs are lubricated in the length and width directions, and on the other hand, the problem of the main oil distributor not being able to supply lubricating oil in time due to the lubricating oil dripping too fast will not occur; the connection between the oil dripping pipe and the oil inlet block adopts a double insurance sealing method of threaded sealing + welding sealing, which is stable and will not leak oil; in summary, the present invention provides a main gear pair dripping lubrication structure with simple structure, stability and reliability, and a wide lubrication surface, which can greatly improve the load-bearing capacity, working quality and service life of the main gear pair, has great market value, and is worthy of wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a main gear pair oil drip lubrication structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure between the oil inlet block and the main oil distributor in the present invention;

[0017] Figure 3 for Figure 2 Middle AA side section view;

[0018] Figure 4for Figure 3 Side cross-section view of the middle BB.

[0019] Among them: oil inlet block 1, Lodi lock washer 2, bolt 3, outer support tube 4, oil drip pipe 5, sealing plate 6, main oil distributor 7, right main gear pair 8, upper crossbeam plate 9, left main gear pair 10, oil drip hole 11, oil inlet 12. DETAILED DESCRIPTION

[0020] The present invention will be further described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments described are only some, not all, of the embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention, its application, or use. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0026] The present invention provides a main gear pair oil drip lubrication structure, such as Figure 1-4 As shown, it includes an oil inlet block 1 connected to the upper cross beam plate 9 and an oil drip pipe 5 arranged on the left and right sides of the oil inlet block 1 corresponding to the left main gear pair 10 and the right main gear pair 8 respectively. Specifically, the oil inlet block 1 is fixedly connected to the upper cross beam plate 9 by bolts 3 and Lodilaut anti-loosening washers 2. Since the surface of the Lodilaut anti-loosening washers 2 has annular wavy patterns, this anti-loosening method has the advantages of low cost, easy operation and high reliability.

[0027] The bottom of the oil dripping tube 5 is provided with a plurality of oil dripping hole groups spaced apart along its length direction, and each of the oil dripping hole groups includes a plurality of oil dripping holes 11 spaced apart along the width direction of the oil dripping tube 5, and the oil dripping holes 11 are connected to the main oil distributor 7 through the oil inlet block 1. Specifically, the main oil distributor 7 is connected to the oil inlet 12 of the oil inlet block 1, and the oil dripping tube 5 is threadedly connected to the oil inlet block 1, and the oil dripping tube 5 is connected to the main oil distributor 7 through the oil inlet block 1. One end of the oil dripping tube 5 is sealed with the oil inlet block 1 through the outer support tube 4, and the other end is sealed and welded by the sealing plate 6, and all welded places must ensure that there is no oil leakage. The sealing sleeve of the outer support tube 4 is arranged on the outside of the oil dripping tube 5, which can support the oil dripping tube 5 and ensure oil dripping. 5 can be arbitrarily lengthened without collapsing, and is suitable for the transmission system of any table, with a wide range of applications.

[0028] Furthermore, the oil dripping tube 5 is a cylindrical pipe, and the oil dripping holes 11 of each oil dripping hole group are spaced apart along the circumferential direction of the oil dripping tube 5. There are three oil dripping hole groups in total, and each oil dripping hole group includes three oil dripping holes 11. The angle between two adjacent oil dripping holes 11 in each oil dripping hole group is 20°, and the aperture of the oil dripping hole 11 is 1.5 mm. Such a design, on the one hand, fully ensures that the left and right main gear pairs are lubricated in the length and width directions, and on the other hand, does not cause the problem of the main oil distributor 7 not being able to supply lubricating oil in time due to the lubricating oil dripping too fast.

[0029] When the main gear pair oil drip lubrication structure of the present invention is working, the thin oil enters the oil inlet block 1 through the oil inlet port 12 on the end face of the oil inlet block 1. Since the outer circle of the connecting end of the oil drip pipe 5 and the oil inlet block 1 is sealed by thread + welding, and the other end face is also welded and sealed by the sealing plate 6, the thin oil can only drip out along the 9 oil drip holes 11 on the oil drip 5. In this way, the left gear pair 10 and the right gear pair 8 achieve oil drip lubrication in their length and width directions.

[0030] In summary, the main gear pair oil drip lubrication structure provided by the present invention fully ensures that the left and right gear pairs of the dual-point structure press can obtain good oil drip lubrication through the design of the left and right groups of oil drip pipes 5, can dissipate the heat generated by the gear meshing in time, reduce gear meshing wear, increase gear life, reduce meshing noise, and improve the load-bearing capacity and working quality of the gear; through the distribution design of the oil drip holes 11, on the one hand, it fully ensures that the left and right main gear pairs are lubricated in the length and width directions, and on the other hand, the problem of the main oil distributor 7 not being able to supply lubricating oil in time due to the lubricating oil dripping too fast will not occur; the connection between the oil drip pipe 5 and the oil inlet block 1 adopts a double insurance sealing method of threaded sealing + welding sealing, which is stable and will not leak oil; in summary, the present invention provides a main gear pair oil drip lubrication structure with simple structure, stability and reliability, and a wide lubrication surface, which can greatly improve the load-bearing capacity, working quality and service life of the main gear pair, has great market value, and is worthy of wide promotion and application.

[0031] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A main gear pair oil drip lubrication structure, characterized by: The invention comprises an oil inlet block (1) connected to an upper crossbeam plate (9) and oil dripping pipes (5) arranged on the left and right sides of the oil inlet block (1) and corresponding to the left main gear pair (10) and the right main gear pair (8), respectively. The bottom of the oil dripping pipe (5) is provided with a plurality of oil dripping hole groups spaced apart along the length direction thereof. Each of the oil dripping hole groups comprises a plurality of oil dripping holes (11) spaced apart along the width direction of the oil dripping pipe (5). The oil dripping holes (11) are connected to the main oil distributor (7) through the oil inlet block (1). One end of the oil dripping pipe (5) is sealed and connected to the oil inlet block (1) through an external support pipe (4). The other end is sealed and connected to a sealing plate (6). The outer support tube (4) is sealed and sleeved on the outside of the oil dripping tube (5). The oil dripping tube (5) is a cylindrical pipe. The oil dripping holes (11) of each oil dripping hole group are spaced apart along the circumferential direction of the oil dripping tube (5). The main oil distributor (7) is connected to the oil inlet (12) of the oil inlet block (1). The oil dripping tube (5) is threadedly connected to the oil inlet block (1), and the oil dripping tube (5) is connected to the main oil distributor (7) through the oil inlet block (1). The angle between two adjacent oil dripping holes (11) in each oil dripping hole group is 20°.

2. The main gear pair oil drip lubrication structure according to claim 1, characterized in that: The oil inlet block (1) is fixedly connected to the upper crossbeam plate (9) via bolts (3) and a Locksmith anti-loosening washer (2).

3. The main gear pair oil drip lubrication structure according to claim 1, characterized in that: There are three oil dripping hole groups in total, and each of the oil dripping hole groups includes three oil dripping holes (11).

4. The main gear pair oil drip lubrication structure according to claim 1, characterized in that: The diameter of the oil dripping hole (11) is 1.5 mm.

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