Device capable of reducing liquid level of reduction gearbox and lubricating bearing

Abstract

The utility model discloses a device capable of reducing the liquid level of a reduction gearbox and lubricating a bearing, which comprises an oil receiving box, an oil scraping tongue is arranged on the oil receiving box, the oil receiving box is connected with a lubricating oil passage, and an outlet of the lubricating oil passage is arranged above the bearing; the lubricating oil channel is a first lubricating oil channel, and the first lubricating oil channel is connected with the first bearing cover plate; a first bearing lubricating oil leakage hole is formed in the portion, above the first bearing, of the first lubricating oil channel, and an outlet of the first lubricating oil channel is formed above the second bearing. The device is simple in structure, convenient to install, low in cost, high in practicability and adaptability, capable of reducing the use amount of engine oil, saving the cost, fundamentally solving the problem of engine oil leakage, environmentally friendly, reliable and capable of guaranteeing reliable lubrication of all bearings while saving the use amount of the engine oil.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction box lubrication, in particular to a device which can lower the liquid level of the reduction box and lubricate the bearing. Background Art

[0002] The reduction box is an important component of the power conversion of the oil pump, and the belt conveyor is the most commonly used vertical oil pump in the oil field. As the use time increases, the internal sealing device of the oil pump wears out and fails, and the oil leakage problem of the reduction box becomes increasingly prominent. The main reason for the oil leakage is the internal structure setting of the reduction box. The lubricating oil level in the reduction box is higher than the centerline height of the reduction box output shaft. The internal bearing uses immersion lubrication, so that the bearing and the skeleton oil seal are immersed in the lubricating oil. As the use time increases, the skeleton oil seal wears and ages, and the bearing shaft and the skeleton oil seal wear each other out of the groove. Due to the high internal oil level, the lubricating oil above the axis will leak from the wear due to pressure.

[0003] As the use time increases, the wear of bearings and shafts increases, and the clearances and wear groove depths of moving parts increase. Even replacing the skeleton oil seal or packing cannot solve the problem of lubricating oil leakage due to excessive internal oil level.

[0004] Therefore, a new device is needed to reduce the lubricating oil level inside the reduction box so that the lubricating oil no longer submerges the bearings and sealing devices, thereby ensuring the reliability of the seal and at the same time ensuring reliable lubrication of the bearings.

[0005] Announcement No.: CN112065969B discloses an adjustable oil receiving plate device and a control method thereof, belonging to the technical field of mechanical lubrication. The prior art sets a reversible oil receiving plate in the housing of the reducer, and the oil receiving plate is connected to a driver electrically connected to the controller through a cable, and the oil receiving plate is provided with an oil collecting groove extending to the oil tank of the housing and an oil passing hole with a flange, so that when the controller detects that the reducer is running at a low speed, the driver can be controlled to lower the oil receiving plate through the cable, and the lubricating liquid brought by the gear is received by the oil receiving plate, and the oil collecting groove is collected and then flows into the oil tank of the housing to achieve lubrication of the bearing, and when the controller detects that the reducer is running at a high speed, the driver can be controlled to pull up the oil receiving plate through the cable, reduce or avoid the collection of lubricating oil by the oil receiving plate, and prevent the risk of oil leakage caused by excessive lubricating oil and accumulation of lubricating oil on the oil seal, which can not only achieve lubrication of the bearing, but also reduce the oil level height of the lubricating oil, reduce the sealing pressure, and reduce the risk of oil leakage.

[0006] The prior art is complicated to install, has a complex structure, and has poor adaptability, and cannot be used to transform various reducers.

[0007] Announcement No.: CN214007989U discloses a splash lubrication device for a reducer. The gears in the reduction box are used to drive the oil-slinging plate to rotate and throw oil to achieve the purpose of lubricating the gears and bearings. The oil collecting plate is used in conjunction with the oil collecting tank to distribute the lubricating oil to various parts that need lubrication. Since the oil-slinging plate is installed below the gear of the reducer, the oil level in the box can be lowered, which can effectively avoid the problem of lubricating oil leaking from the shaft end.

[0008] The prior art is complicated to install, has a complex structure, and has poor adaptability, and cannot be used to transform various reducers.

[0009] Announcement No.: CN216519522U, discloses an intelligent control system for oil leakage at the shaft end of an oil pumping unit reducer, including an intelligent control box and two shaft end oil collectors. A built-in oil box is fixedly arranged on one side of the bottom of the inner wall of the explosion-proof chassis, and two oil inlet pipes connected to the built-in oil box are fixedly arranged on one side of the top of the intelligent control box. The top ends of the two oil inlet pipes are fixedly connected to the bottoms of the two shaft end oil collectors through pipelines respectively, and a liquid level sensor is fixedly installed on one side of the inner wall of the built-in oil box. The prior art seals the output shaft end and the input shaft end of the reducer respectively through the two shaft end oil collectors, and refluxes the oil for collection. When the oil in the built-in oil box reaches a certain amount, the liquid level sensor starts the oil pump, which can automatically refill the oil in the built-in oil box into the reducer through the oil pipe to complete the recycling of the oil. When the oil level in the oil box drops to a certain level, the liquid level sensor automatically shuts down the oil pump. The operation is convenient, effectively avoids the waste of resources caused by oil leakage, and reduces the labor intensity of the staff.

[0010] The prior art is complicated to install, has a complex structure, and has poor adaptability, and cannot be used to transform various reducers.

[0011] In summary, the technical solutions of the above-disclosed technologies, the technical problems to be solved, and the beneficial effects produced are all different from the present invention. Regarding more technical features, technical problems to be solved, and beneficial effects of the present invention, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0012] In view of the above-mentioned defects in the prior art, the purpose of the utility model is to efficiently solve the problems of oil leakage of the reduction gearbox and bearing lubrication through a simple and easy-to-install structure.

[0013] The utility model adopts the following technical solutions:

[0014] A device capable of lowering the liquid level in a reduction gearbox and lubricating bearings, comprising an oil receiving box, the oil receiving box being provided with an oil scraper tongue, the oil receiving box being connected to a lubricating oil channel, the outlet of the lubricating oil channel being arranged above the bearing; the lubricating oil channel being a first lubricating oil channel, the first lubricating oil channel being connected to a first bearing cover plate; the first lubricating oil channel being provided with a first bearing lubricating oil leakage hole in the portion above the first bearing, the outlet of the first lubricating oil channel being arranged above the second bearing.

[0015] Furthermore, the first lubricating oil channel is fixed on a fixing plate; and the fixing plate is fixed on a first bearing cover plate.

[0016] Furthermore, there are two lubricating oil passages, including a first lubricating oil passage and a second lubricating oil passage. The second lubricating oil passage is also arranged on the fixed plate, and an outlet of the second lubricating oil passage is arranged above the third bearing.

[0017] Furthermore, the fixing plate is fixed to the first bearing cover plate by means of U-shaped bolts.

[0018] Furthermore, the first lubricating oil passage and the second lubricating oil passage are bent oil passages.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1) Simple structure, easy installation, low cost, strong practicality and adaptability;

[0021] 2) Reduce the amount of oil used and save costs;

[0022] 3) Solve the oil leakage problem from the root, environmentally friendly and reliable;

[0023] 4) It saves engine oil and ensures reliable lubrication of all bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a device capable of lowering the liquid level of a reduction gearbox and lubricating bearings according to the utility model;

[0025] In the figure: 1. oil scraper tongue; 2. oil receiving box; 3. first lubricating oil channel; 4. first bearing lubricating oil leakage hole; 5. second lubricating oil channel; 6. U-bolt; 7. fixing plate; 8. fixing nut; 9. first bearing cover plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 , a device capable of lowering the liquid level of a reduction gearbox and lubricating a bearing, comprising an oil receiving box 2, on which an oil scraper tongue 1 is arranged, and the oil receiving box 2 is connected to a lubricating oil passage, and an outlet of the lubricating oil passage is arranged above the bearing;

[0028] Embodiment 1:

[0029] The lubricating oil passage is a first lubricating oil passage 3, which is fixed on a fixing plate 7, and the fixing plate 7 is fixed on a first bearing cover plate 9 by means of a U-shaped bolt 6. The first lubricating oil passage 3 is a bent oil passage, and a first bearing lubricating oil leakage hole 4 is provided on the portion of the first lubricating oil passage 3 above the first bearing; the outlet of the first lubricating oil passage 3 is provided above the second bearing.

[0030] Embodiment 2:

[0031] There are two lubricating oil passages, including a first lubricating oil passage 3 and a second lubricating oil passage 5. The second lubricating oil passage 5 is also fixed on the fixing plate 7. The outlet of the second lubricating oil passage 5 is arranged above the third bearing. The second lubricating oil passage 5 is a bent oil passage.

[0032] Specific usage of this utility model:

[0033] Take the two-stage reducer as an example. When working, first extract the lubricating oil in the reducer until the lubricating oil level is lower than the lowest point of the large shaft bearing. Then fix the device on the shaft bearing seat of the reducer through the U-bolt 6, adjust the clearance between the scraper tongue 1 and the gear in the reducer to ensure a clearance of 1-2mm, adjust the clearance between the first lubricating oil passage 3 and the small shaft bearing so that they do not interfere with each other, and adjust the clearance between the second lubricating oil passage 5 and the large shaft bearing so that they do not interfere with each other.

[0034] When the reduction gearbox is running, the gears are partially immersed in the lubricating oil. When the gears rotate, the lubricating oil is stirred, and part of the lubricating oil rotates with the gears. Due to the effect of gravity, part of the lubricating oil will fall into the oil receiving box. Due to the viscosity and surface tension of the lubricating oil, part of the lubricating oil adheres to the gears, and part of the lubricating oil is scraped into the oil receiving box 2 through the oil scraper tongue 1.

[0035] After the lubricating oil in the oil receiving box 2 is filled, it flows along the first lubricating oil passage 3 and the second lubricating oil passage 5 to lubricate the small shaft bearing and the large shaft bearing respectively.

[0036] When the lubricating oil flows through the first bearing lubricating oil leakage hole 4 of the first lubricating oil channel 3, part of the lubricating oil drips from the first bearing lubricating oil leakage hole 4 onto the middle bearing, thereby completing the lubrication of the middle bearing.

[0037] By installing this device, the bearings in the reduction box are no longer immersed in the lubricating oil, and only rely on the splashing lubricating oil to lubricate each bearing. There is no oil level and oil pressure at the original oil pump leakage point, so the lubricating oil is exposed along the gap, which solves the oil leakage problem from the root. In addition, this device has a simple structure and can be installed in most reduction boxes.

[0038] All components and connection methods of components not discussed in this application belong to the known technologies in this technical field and can be directly applied without further explanation.

[0039] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" 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 invention can be understood according to the specific circumstances.

[0040] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, cannot be understood as a limitation on the present invention.

[0041] 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 utility model. 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.

[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device capable of lowering the liquid level of a reduction gearbox and lubricating a bearing, comprising an oil receiving box, characterized in that: The oil receiving box is provided with an oil scraper tongue, the oil receiving box is connected with a lubricating oil passage, and the outlet of the lubricating oil passage is provided above the bearing; The lubricating oil passage is a first lubricating oil passage, and the first lubricating oil passage is connected to the first bearing cover plate; A first bearing lubrication oil leakage hole is arranged at a portion of the first lubricating oil passage above the first bearing, and an outlet of the first lubricating oil passage is arranged above the second bearing.

2. A device capable of lowering the liquid level in a reduction gearbox and lubricating bearings according to claim 1, characterized in that: The first lubricating oil channel is fixed on the fixed plate; The fixing plate is fixed on the first bearing cover plate.

3. The device for reducing the liquid level in the reduction gearbox and lubricating the bearing according to claim 2, characterized in that: There are two lubricating oil passages, including a first lubricating oil passage and a second lubricating oil passage. The second lubricating oil passage is also arranged on the fixed plate, and the outlet of the second lubricating oil passage is arranged above the third bearing.

4. The device for reducing the liquid level in the reduction gearbox and lubricating the bearing according to claim 3, characterized in that: The fixing plate is fixed to the first bearing cover plate by means of U-shaped bolts.

5. The device for reducing the liquid level in the reduction gearbox and lubricating the bearing according to claim 4, characterized in that: The first lubricating oil passage and the second lubricating oil passage are bent oil passages.

Images