Oil tank overturning ventilation device, speed reducer and overturning machine thereof

Abstract

The utility model relates to an oil tank overturning ventilation device, a speed reducer and an overturning machine of the speed reducer, the oil tank overturning ventilation device comprises an oil tank, a connecting hose, a ventilation assembly and a rotating support arranged on one side of the oil tank; vent holes are formed in the top of the oil tank; a rotating cavity is formed in one side of the rotating bracket; the ventilation assembly comprises a ventilation channel, a balancing weight arranged at the bottom of the ventilation assembly, a rotating support arranged on one side of the ventilation assembly and a ventilation cap arranged at the top of the ventilation assembly. The first end of the connecting hose is connected with the vent hole, and the second end is connected with the top of the rotating cavity; the rotating joint is rotatably connected with one side of the rotating cavity; the first end of the ventilation channel is connected with the rotary joint, and the second end is connected with the ventilation cap. According to the oil tank overturning ventilation device, under the dynamic working condition, the dual requirements for leakage prevention and pressure balance are met at the same time, the structure is simple, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil tank turnover ventilation device technical field, especially, relate to an oil tank turnover ventilation device, speed reducer and its turnover machine. BACKGROUND

[0002] As the core component of storing and supplying lubricating oil or working oil in mechanical equipment, the oil tank usually realizes internal and external pressure balance through setting ventilation device to ensure the smooth flow of oil. However, when involving dynamic working conditions (such as equipment turnover, inclination or severe vibration), the internal oil will flow out through the ventilation device; on the one hand, it pollutes the equipment and its surrounding environment, which is particularly prominent in places with high cleanliness requirements, such as food processing, electronic manufacturing and medical equipment; on the other hand, oil leakage not only causes oil waste, but also causes insufficient lubrication of various equipment parts due to reduced oil quantity, further causing equipment part wear or overheating problems. The existing oil tank ventilation device, such as a simple ventilation cap or a one-way valve, cannot simultaneously meet the dual requirements of preventing leakage and pressure balance under dynamic working conditions. Taking the speed reducer as an example, the speed reducer is often installed on mechanical structures with turnover or rotary motion, such as cranes, engineering machinery, rotary platforms, etc. When turnover motion occurs, gear oil will leak out through the ventilation device, not only polluting the work surface, but also affecting the safety of equipment operation.

[0003] Therefore, how to provide a ventilation device that simultaneously meets the dual requirements of preventing leakage and pressure balance under dynamic working conditions, with simple structure and easy maintenance, is a technical problem to be solved in the field. UTILITY MODEL CONTENT

[0004] To solve at least one of the above technical problems, the utility model provides an oil tank turnover ventilation device, comprising: an oil tank, a connecting hose, a ventilation assembly and a rotary support arranged on one side of the oil tank.

[0005] The oil tank is provided with a ventilation hole at the top;

[0006] The rotary support is provided with a rotary cavity on one side;

[0007] The ventilation assembly comprises a ventilation passage, a counterweight arranged at the bottom of the ventilation assembly, a rotary support arranged on one side of the ventilation assembly and a ventilation cap arranged at the top of the ventilation assembly;

[0008] The connecting hose is connected to the ventilation hole at the first end and connected to the top of the rotary cavity at the second end;

[0009] The rotary joint is rotatably connected to one side of the rotary cavity;

[0010] The ventilation passage is connected to the rotary joint at the first end and connected to the ventilation cap at the second end.

[0011] Further, the air-breathing assembly further comprises an oil injection chamber arranged between the air-breathing cap and the air-breathing passage.

[0012] The oil injection chamber stores working oil.

[0013] Further, the air-breathing assembly further comprises an oil injection hole arranged at the top of the oil injection chamber and an oil injection guide funnel arranged around the oil injection hole.

[0014] The air-breathing cap is detachably arranged in the oil injection hole.

[0015] Further, an oil-repellent coating is arranged inside the oil injection guide funnel.

[0016] Further, a filter screen is arranged in the oil injection hole.

[0017] Further, the counterweight is made of a corrosion-resistant metal block.

[0018] Further, the connecting assembly further comprises a counterweight which is detachably arranged at one side of the counterweight.

[0019] Further, a sealing ring is arranged at the connection between the connecting hose and the air-breathing hole and / or the connection between the connecting hose and the rotating cavity.

[0020] A speed reducer comprises a transmission assembly and any of the oil tank overturning air-breathing devices.

[0021] The transmission assembly is arranged in the oil tank of the oil tank overturning air-breathing device.

[0022] An overturning machine comprises any of the speed reducers.

[0023] In this embodiment, an oil tank overturning air-breathing device is provided. An air-breathing hole is arranged at the top of the oil tank. A first end of a connecting hose is connected to the air-breathing hole to ensure that the inside of the oil tank is in communication with the air-breathing assembly. The air-breathing assembly is connected to a rotating cavity through a rotating joint to form a rotatable air-breathing passage. An air-breathing passage is connected to the outside through the rotating joint and an air-breathing cap to achieve pressure balance between the oil tank and the outside. The overall structure is simple, reliable and easy to maintain. Under dynamic working conditions (such as oil tank overturning, tilting or severe vibration), the counterweight at the bottom of the air-breathing assembly uses the principle of gravity to rotate relative to the rotating cavity through the rotating joint, so that the air-breathing assembly can rotate flexibly, and the air-breathing cap always stays at the highest point to avoid the risk of oil flowing out through the air-breathing passage. The air-breathing cap remains unblocked under dynamic working conditions and exchanges air with the outside to discharge and dissipate heat, ensuring that the pressure inside the oil tank is consistent with the pressure outside the environment, avoiding air resistance or abnormal oil supply caused by pressure difference. In summary, the oil tank overturning air-breathing device provided by the present application meets the dual requirements of preventing leakage and pressure balance under dynamic working conditions, and has a simple structure and is easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description are briefly introduced as follows. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the drawings shown in the accompanying drawings without any creative effort. In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn according to the actual proportions.

[0025] Figure 1 is a schematic view of an embodiment of the oil tank overturning and ventilating device of the present application;

[0026] Figure 2 is a sectional view of an embodiment of the rotating support of the oil tank overturning and ventilating device of the present application;

[0027] Figure 3 is a partial sectional view of an embodiment of the ventilating assembly of the oil tank overturning and ventilating device of the present application;

[0028] Figure 4 is a partial sectional view of another embodiment of the ventilating assembly of the Fenton oil tank overturning and ventilating device of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0030] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can have a middle element.

[0031] It should also be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," "S1," "S2," "step one," "step two," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance, or implicitly indicating the number of technical features indicated or the execution order of the method. Those skilled in the art will understand that anything that does not violate the essential points of the utility model within the scope of its inventive concept should be included within the protection scope of this utility model.

[0032] This utility model provides a fuel tank tilting and venting device, see reference. Figure 1 and Figure 2 It includes: fuel tank 1, connecting hose 2, venting assembly 3 and rotating bracket 4 set on one side of fuel tank;

[0033] The top of the fuel tank 1 is provided with a vent 11;

[0034] The rotating bracket 4 has a rotating cavity 41 on one side;

[0035] The breathable component includes: a breathable channel 33, a counterweight 32 disposed at the bottom of the breathable component, a rotary joint 31 disposed on one side of the breathable component, and a breathable cap 34 disposed at the top of the breathable component.

[0036] Connect hose 2, with the first end connected to vent 11 and the second end connected to the top of rotating cavity 41;

[0037] Rotary joint 31, which is rotatably connected to one side of rotating cavity 41;

[0038] The ventilation channel 33 has its first end connected to the rotary joint 31 and its second end connected to the ventilation cap 34.

[0039] In this embodiment, an oil tank overturning air breather device is given, the top of the oil tank is provided with an air breather hole, the first end of the connecting hose is connected with the air breather hole, and the inside of the oil tank is communicated with the air breather assembly. The air breather assembly is connected with the rotating cavity through the rotary joint to form a rotatable air breather passage. The air breather passage is connected with the outside through the rotary joint and the air breather cap to realize pressure balance between the oil tank and the outside. The overall structure is simple, reliable and easy to maintain. Under dynamic working conditions (such as oil tank overturning, tilting or severe vibration), the counterweight at the bottom of the air breather assembly uses the principle of gravity to rotate relative to the rotating cavity through the rotary joint, so that the air breather assembly can rotate flexibly, and the air breather cap always stays at the highest point to avoid the risk of oil flowing out through the air breather passage. The air breather cap still keeps unblocked under dynamic working conditions, exchanges with outside air for exhaust and heat dissipation, ensures that the pressure inside the oil tank is consistent with the pressure outside the environment, and avoids air resistance or abnormal oil supply caused by pressure difference. In summary, the oil tank overturning air breather device provided by the application meets the dual requirements of preventing leakage and pressure balance under dynamic working conditions, and has a simple structure and is easy to maintain

[0040] Preferably, referring to Figure 3 , the air breather assembly 3 further comprises an oil injection chamber 35 arranged between the air breather cap 34 and the air breather passage 33.

[0041] The oil injection chamber 35 stores working oil.

[0042] In this embodiment, an oil injection chamber is added between the air breather cap and the air breather passage. When it is necessary to supplement the oil in the oil tank, according to the principle of air pressure balance, the liquid level of the working oil stored in the oil injection chamber is always higher than that of the working oil in the oil tank. When the oil in the oil tank is reduced due to consumption, the working oil in the oil injection chamber flows into the oil tank through the air breather passage, the rotating cavity, the connecting hose and the air breather hole to form an oil injection pipeline under the joint action of gravity and atmospheric pressure, thereby realizing automatic oil injection. Optionally, the working oil is lubricating oil, hydraulic oil, cooling oil, cutting oil, insulating oil or anti-rust oil, etc. Those skilled in the art can make adaptive selection according to the mechanical device to which the oil tank overturning air breather device is mounted and the specific function required to be realized by the mechanical device. Taking the oil tank overturning air breather device used in a speed reducer and the working oil being gear lubricating oil as an example, the liquid level of the gear lubricating oil stored in the oil injection chamber is always higher than that of the gear lubricating oil in the speed reducer. When the gear lubricating oil in the speed reducer is reduced due to consumption, the gear lubricating oil in the oil injection chamber flows into the speed reducer under the action of gravity to realize automatic oil injection, thereby ensuring the normal operation of the lubricating system of the speed reducer.

[0043] Preferably, referring to Figure 4 , the air breather assembly 3 further comprises an oil injection hole 36 arranged at the top of the oil injection chamber 35 and an oil injection guide funnel 37 arranged around the oil injection hole 36.

[0044] A vent cap 34 is detachably mounted in the oil injection hole 36.

[0045] In this embodiment, an oil injection hole is added to the vent assembly, and an oil injection guide funnel is arranged around the oil injection hole. In use, the user detaches the vent cap, directly through the oil injection guide funnel, to supplement the oil in the oil injection chamber and the oil tank, avoiding the overflow phenomenon during oil injection. The oil injection guide funnel can adapt to various oil injection methods, whether manual oiling or using an oil canister to fill, it can be easily completed to adapt to the flexible needs of different working conditions.

[0046] More preferably, an oil-repellent coating is arranged inside the oil injection guide funnel 37.

[0047] In this embodiment, an oil-repellent coating is added inside the oil injection guide funnel, on the one hand, the oil-repellent coating allows the oil to quickly flow into the oil injection hole, shortening the oil injection time and greatly improving the efficiency of the oil injection operation; on the other hand, due to the oil-repellent coating, the oil is not easy to adhere, and the oil injection guide funnel can still remain clean after long-term use without the need for frequent cleaning or replacement, reducing the equipment maintenance workload. In addition, the oil-repellent coating can reduce the residue of the previous oil on the surface of the funnel, prevent mixing and contamination between different oils, and ensure the purity and operation reliability of the equipment lubrication system. Optionally, the material of the oil-repellent coating is polytetrafluoroethylene or fluorinated polymer coating or silane coating, etc., to reduce oil adhesion, improve oil flowability, and enhance the cleanliness of the oil injection guide funnel.

[0048] More preferably, referring to Figure 4 , a filter screen 38 is arranged in the oil injection hole 36; the oil during the oil injection process is purified to filter out larger solid particles, maintaining the purity of the oil, which helps to improve the performance of the oil and avoid precision loss or failure of the device due to oil contamination.

[0049] Preferably, the material of the counterweight block is a corrosion-resistant metal block; for example, stainless steel, aluminum, titanium, nickel, and copper block, to adapt to high humidity, acidic or alkaline environments, to ensure the long-term stable operation of the device and further improve the service life of the device.

[0050] Preferably, referring to Figure 3 , the connecting assembly 3 further comprises: a counterweight block 39 detachably mounted on one side of the counterweight block 32.

[0051] In this embodiment, the counterweight is added to the connecting assembly, and the counterweight is detachably installed on the counterweight. The weight of the counterweight is accurately adjusted during the operation of the device, and the center of gravity of the connecting assembly is optimized to adapt to the changing working conditions and environment. For example, when the operator replaces the working oil with low density with the working oil with high density, the center of gravity of the air permeable assembly will change. In order to keep the center of gravity of the air permeable assembly within a certain range, the operator adjusts the center of gravity of the air permeable assembly by adding the counterweight.

[0052] Preferably, a sealing ring is arranged at the connection between the connecting hose 2 and the air permeable hole 11, and / or at the connection between the connecting hose 2 and the rotating cavity 41.

[0053] In this embodiment, the sealing ring is arranged at the connection between the connecting hose and the air permeable hole, and / or at the connection with the rotating cavity. This can effectively prevent the lubricating oil or working oil from leaking from the connection, especially during the tilting or overturning of the device. The sealing ring can maintain good sealing performance and prevent environmental pollution or performance degradation caused by oil leakage, further improve the sealing performance of the device, prolong the service life of the device, improve the operation reliability, and reduce the maintenance cost.

[0054] A reducer, characterized in that it comprises a transmission assembly and any of the oil tank overturning air permeable devices.

[0055] The transmission assembly is arranged in the oil tank of the oil tank overturning air permeable device.

[0056] In this embodiment, a reducer is provided. During the operation of the reducer, the high-speed rotation of the internal gear generates heat, which causes the internal pressure of the oil tank to rise. Through the connecting hose and the air permeable cap of the air permeable assembly, the oil tank can discharge excess gas and simultaneously inhale external air, balance the internal and external pressures, and prevent deformation or oil leakage caused by pressure difference. At the same time, through the design of the counterweight in the air permeable assembly, it is ensured that the air permeable cap remains upward during the overturning process, avoiding the pollution of the working environment caused by oil spillage in dynamic working conditions such as overturning and vibration, and greatly improving the application range of the reducer.

[0057] A turnover machine comprising any of the reducers described above.

[0058] In this embodiment, a turnover machine is provided. The turnover machine uses a reducer equipped with an oil tank overturning air permeable device, which effectively prevents oil leakage from the air permeable device in complex working conditions such as overturning and vibration, and can adapt to different working conditions, especially in scenarios where the reducer needs to be overturned at multiple angles and tilted at high frequencies. This greatly improves the application range of the turnover machine.

[0059] The above-mentioned speed reducer and the roll-over machine are created based on the oil tank overturning and air permeating device, and the combination of the technical effects and the technical features is not described here. The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims

1. A fuel tank tilting and venting device, characterized in that, include: Fuel tank, connecting hose, venting assembly, and rotating bracket located on one side of the fuel tank; The top of the fuel tank is equipped with vents; A rotating bracket with a rotating cavity on one side; The breathable component includes: a breathable channel, a counterweight at the bottom of the breathable component, a rotating bracket on one side of the breathable component, and a breathable cap at the top of the breathable component; Connect the hose, with the first end connected to the vent and the second end connected to the top of the rotating chamber; A rotary joint, a rotatable connection to one side of a rotating cavity; The ventilation channel is connected to a swivel joint at one end and to a ventilation cap at the other end.

2. The fuel tank tilting and venting device according to claim 1, characterized in that, The ventilation assembly also includes an oil injection chamber disposed between the ventilation cap and the ventilation channel; The oil filling chamber contains working oil.

3. The fuel tank tilting and venting device according to claim 2, characterized in that, The venting assembly also includes: an oil injection hole located at the top of the oil injection chamber and an oil injection guide funnel surrounding the oil injection hole; The vent cap is detachably installed inside the oil filling hole.

4. The fuel tank tilting and venting device according to claim 3, characterized in that, An oleophobic coating is provided on the inner side of the oil injection guide funnel.

5. The fuel tank tilting and venting device according to claim 3, characterized in that, A filter screen is installed inside the oil filling hole.

6. The fuel tank tilting and venting device according to claim 1, characterized in that, The counterweight is made of corrosion-resistant metal.

7. The fuel tank tilting and venting device according to claim 1, characterized in that, The connecting assembly also includes a detachable counterweight mounted on one side of the counterweight.

8. The fuel tank tilting and venting device according to claim 1, characterized in that, A sealing ring is provided at the connection between the connecting hose and the vent, or / and at the connection between the connecting hose and the rotating cavity.

9. A speed reducer, characterized in that, include: The transmission assembly and the oil tank tilting and venting device according to any one of claims 1-8; The transmission components are located inside the oil tank of the oil tank tilting and venting device.

10. A flipping machine, characterized in that, Includes the speed reducer as described in claim 9.

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