Excavator chain lubricating oil tank

By installing baffles and through-hole structures inside the excavator chain lubricating oil tank, the problem of the lubricating oil not being able to drain when the tank is tilted at a large angle is solved, thus achieving effective utilization of the lubricating oil and reducing lubrication costs.

CN224215114UActive Publication Date: 2026-05-08TIANJIN QIXUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN QIXUN TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing excavator chain lubrication systems cannot effectively lubricate the chain when tilted at large angles, causing the oil tank to tip over and fail to discharge lubricating oil, resulting in wasted hydraulic oil and high costs.

Method used

Design an excavator chain lubrication oil tank, which is divided into an air inlet chamber and an oil outlet chamber by setting a first partition in the tank body, and a through hole is set on the partition to allow lubricating oil and gas to flow between the chambers, ensuring that the lubricating oil can still be discharged when tilted at a large angle.

Benefits of technology

This technology ensures that lubricating oil can still be effectively discharged when the excavator head changing device tilts at a large angle, reducing lubrication costs and avoiding waste of hydraulic oil.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an excavator chain lubricating oil tank, which relates to the technical field of excavator chain lubricating oil and comprises a tank body and a first partition plate. The box body is used for storing lubricating oil; the first partition plate is arranged in the box body, and the interior of the box body is divided into an air inlet cavity and an oil outlet cavity from top to bottom through the first partition plate. A first through hole is formed in a first corner of the first partition plate, and the air inlet cavity and the oil outlet cavity are communicated through the first through hole, so that lubricating oil and gas in the box body flow between the air inlet cavity and the oil outlet cavity; a first inlet is formed in the top of the box body, and the first inlet of the box body communicates with the air inlet cavity and is used for air inlet of the box body or supplementing lubricating oil into the box body from the first inlet; an outlet is formed in the bottom of the box body, communicates with the oil outlet cavity and is used for discharging lubricating oil in the box body. Lubricating oil can still be discharged from the outlet of the box body when the box body topples over at a large angle in any direction along with the excavator head replacing device, and then the excavator chain is lubricated through the lubricating oil.
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Description

Technical Field

[0001] This utility model relates to the field of excavator chain lubrication technology, and in particular to an excavator chain lubrication oil tank. Background Technology

[0002] Excavator head-changing devices typically contain transmission components such as chains. With increased use, these components inevitably experience rapid wear. Therefore, excavators are usually equipped with an excavator chain lubrication system. Existing excavator chain lubrication systems typically lubricate the chain by discharging some hydraulic oil from the hydraulic system through an oil line. However, this method wastes hydraulic oil, resulting in excessively high chain lubrication costs.

[0003] Another feasible approach is to install a lubricating oil tank containing a portion of the lubricating oil within the excavator head changer. Some of this oil is then discharged through an oil circuit to lubricate the chain. This method eliminates the need to waste hydraulic oil from the hydraulic system, reducing chain lubrication costs. However, since the lubricating oil tank is fixed within the excavator head changer, it may tip over during operation. Existing lubricating oil tanks cannot discharge oil when tilted at large angles (over 90°), meaning that this method of chain lubrication using a tank within the head changer may not effectively lubricate the chain during operation. Utility Model Content

[0004] The purpose of this utility model is to provide an excavator chain lubrication oil tank to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides an excavator chain lubrication oil tank, comprising: a tank body and a first partition plate;

[0006] The enclosure is used to store lubricating oil;

[0007] The first partition is disposed inside the housing, and the housing is divided into an air inlet chamber and an oil outlet chamber from top to bottom by the first partition;

[0008] The first partition has a first through hole at its first corner. The air inlet chamber and the oil outlet chamber are connected through the first through hole, so that the lubricating oil and gas in the housing can flow between the air inlet chamber and the oil outlet chamber.

[0009] The top of the housing is provided with a first inlet, which is connected to the air intake chamber for air intake or for replenishing lubricating oil into the housing from the first inlet;

[0010] The bottom of the housing is provided with an outlet, which is connected to the oil outlet chamber for discharging lubricating oil from the housing.

[0011] During use, the housing is not tilted or tilted in any direction away from the first through hole. When the level of the lubricating oil in the oil outlet chamber is higher than the outlet of the housing, the lubricating oil can be discharged from the outlet of the housing, thereby lubricating the excavator chain.

[0012] This application divides the inside of the housing into an air inlet chamber and an oil outlet chamber from top to bottom by setting a first partition. The first partition is provided with a first through hole, through which lubricating oil and gas in the housing can flow between the air inlet chamber and the oil outlet chamber. When the housing is tilted at a large angle in any direction away from the first through hole by the excavator head changing device, the lubricating oil can still be discharged from the outlet of the housing, thereby using the lubricating oil to lubricate the excavator chain.

[0013] Furthermore, a second partition is provided inside the box, which is located below the first partition. The lubricating oil tank is divided from top to bottom into an air inlet chamber, an intermediate chamber, and an oil outlet chamber by the first partition and the second partition.

[0014] The second partition has a second through hole at the opposite corner of the first corner. The air inlet chamber, the intermediate chamber and the oil outlet chamber are connected in sequence through the first through hole and the second through hole, so that the lubricating oil and gas in the lubricating oil tank can flow between the air inlet chamber, the intermediate chamber and the oil outlet chamber.

[0015] During use, the housing is not tilted or tilted in any direction. When the level of the lubricating oil in the oil outlet chamber is higher than the outlet of the housing, the lubricating oil can be discharged from the outlet of the housing, thereby using the lubricating oil to lubricate the excavator chain.

[0016] Furthermore, the excavator chain lubrication oil tank also includes a first one-way valve, which is detachably installed at the first inlet for unidirectional flow of gas or lubricating oil from the first inlet into the tank body, and prevents gas and / or lubricating oil in the tank body from being discharged from the first inlet when the tank body is tilted.

[0017] Furthermore, a second inlet is provided on the top of the housing, which is connected to the air intake chamber and is used to replenish lubricating oil into the housing from the second inlet;

[0018] The first inlet is used only for air intake of the housing.

[0019] Furthermore, the excavator chain lubricating oil tank also includes a cover, which is detachably installed on the second inlet for sealing the second inlet.

[0020] Preferably, the cover is detachably installed on the second inlet by means of threads or snap-fit.

[0021] Furthermore, the first inlet of the box is not connected to the inside of the box;

[0022] The second inlet is used for air intake of the housing, or for replenishing lubricating oil into the housing from the second inlet.

[0023] Furthermore, the excavator chain lubrication oil tank also includes a second one-way valve, which is connected to the second inlet and is used for unidirectional flow of gas or lubricating oil from the second inlet into the tank body. When the tank body is tilted, it prevents the gas and / or lubricating oil in the tank body from being discharged from the second inlet.

[0024] Furthermore, a level gauge is installed on the outside of the box, and the lowest liquid level height of the level gauge is the same as the height of the first partition, which is used to detect the liquid level height of the lubricating oil in the box;

[0025] Before use, the level of the lubricating oil in the tank is observed using the level gauge to see if it is higher than the height of the first partition. If the level of the lubricating oil in the tank is lower than the height of the first partition, lubricating oil needs to be added to the tank to ensure that the cavity below the first partition is filled with lubricating oil. This ensures that when the tank is tilted at a large angle, the level of the lubricating oil in the oil outlet cavity can be higher than the outlet of the tank, allowing the lubricating oil to be discharged from the outlet and thus lubricating the excavator chain.

[0026] Furthermore, the outlet of the housing is connected to an oil outlet pipe. One end of the oil outlet pipe is connected to the oil outlet of the housing, and the other end is set as a chain lubrication port. The chain lubrication port is located above the chain, so that the lubricating oil in the housing can be discharged from the chain lubrication port through the oil outlet pipe and flow onto the chain to lubricate it.

[0027] Furthermore, all four side walls of the box are perpendicular to the adjacent box walls;

[0028] When the excavator head changing device is operating normally, the housing will usually tilt along the length or width direction of the housing.

[0029] Preferably, the outlet of the box is located at the bottom center of the box.

[0030] Preferably, the maximum tilting angle at which the oil can be discharged when the housing is tilted along the length or width direction is 120° to 145°. When the housing is tilted along the length or width direction without exceeding the maximum tilting angle, the level of the lubricating oil in the oil outlet chamber is higher than the outlet of the housing, and the lubricating oil can be discharged from the outlet of the housing, thereby using the lubricating oil to lubricate the excavator chain.

[0031] By adopting the above technical solution, this utility model has the following beneficial effects:

[0032] The present invention provides an excavator chain lubrication oil tank, which allows lubricating oil to still be discharged from the outlet of the tank when the tank body is tilted at a large angle in any direction with the excavator head changing device, thereby using the lubricating oil to lubricate the excavator chain. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the excavator chain lubrication oil tank provided in an embodiment of the present utility model;

[0035] Figure 2 for Figure 1 The diagram shows the internal structure of the excavator chain lubrication oil tank.

[0036] Figure 3 for Figure 1 The diagram shows the internal structure of the excavator chain lubrication oil tank when it is tilted in a direction away from the first through hole.

[0037] Figure 4 for Figure 1 The image shows a perspective view of the excavator chain lubrication tank tilted along its length toward the side away from the first through hole.

[0038] Figure 5 for Figure 1 The image shows a side perspective view of the excavator chain lubrication tank tilted away from the first through hole along its width.

[0039] Figure 6 A schematic diagram of the internal structure of the excavator chain lubrication oil tank provided in another embodiment of this utility model;

[0040] Figure 7 for Figure 6The image shows a perspective view of the excavator chain lubrication tank tilted to both sides along its length.

[0041] Figure 8 for Figure 6 The image shows a side perspective view of the excavator chain lubrication tank tilted to both sides along its width.

[0042] Figure label:

[0043] 1-Box body; 101-First inlet of lubricating oil tank; 102-Outlet of lubricating oil tank; 103-Second inlet of lubricating oil tank; 11-First partition; 111-First through hole; 12-Second partition; 121-Second through hole; 13-Air inlet chamber; 14-Intermediate chamber; 15-Oil outlet chamber; 2-Box cover. Detailed Implementation

[0044] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The present invention will be further explained below with reference to specific embodiments.

[0048] It should also be noted that the specific embodiments or implementation methods described below are a series of optimized settings listed by this utility model to further explain the specific utility model content, and these settings can be combined or used in conjunction with each other.

[0049] Example 1

[0050] like Figure 1-5 As shown ( Figure 3-5 (The red dotted line in the middle represents the lubricating oil level). This embodiment provides an excavator chain lubricating oil tank, which includes: a tank body 1 and a first partition 11;

[0051] The housing 1 is used to store lubricating oil;

[0052] The first partition 11 is disposed inside the housing 1, and the housing 1 is divided from top to bottom into an air inlet chamber 13 and an oil outlet chamber 15 by the first partition 11.

[0053] The first corner of the first partition 11 is provided with a first through hole 111, and the air inlet chamber 13 and the oil outlet chamber 15 are connected through the first through hole 111, so that the lubricating oil and gas in the housing 1 can flow between the air inlet chamber 13 and the oil outlet chamber 15.

[0054] The top of the housing 1 is provided with a first inlet 101, which is connected to the air intake chamber 13 for air intake of the housing 1;

[0055] The bottom of the housing 1 is provided with an outlet 102, which is connected to the oil outlet chamber 15 for discharging lubricating oil from the housing 1.

[0056] During use, the housing 1 is not tilted or tilted in any direction away from the first through hole 111. When the level of the lubricating oil in the oil outlet chamber 15 is higher than the outlet 102 of the housing 1, the lubricating oil can be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0057] This application divides the interior of the housing 1 into an air inlet chamber 13 and an oil outlet chamber 15 from top to bottom by setting a first partition 11 inside the housing 1. The first partition 11 is provided with a first through hole 111, through which lubricating oil and gas in the housing 1 can flow between the air inlet chamber 13 and the oil outlet chamber 15. When the housing 1 is tilted at a large angle in any direction away from the first through hole 111 by the excavator head changing device, the lubricating oil can still be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain. Based on the above technical solution, more preferably, the excavator chain lubricating oil tank also includes a first one-way valve, which is detachably installed in the first inlet 101, for unidirectional flow of gas or lubricating oil from the first inlet 101 into the housing 1, and prevents the gas and / or lubricating oil in the housing 1 from being discharged from the first inlet 101 when the housing 1 is tilted.

[0058] Furthermore, a second inlet 103 is provided on the top of the housing 1. The second inlet 103 is connected to the air intake chamber 13 and is used to replenish lubricating oil into the housing 1 from the second inlet 103. In this embodiment, the second inlet 103 is the oil filling port of the housing 1. When the amount of lubricating oil in the housing 1 is insufficient, lubricating oil is replenished into the housing 1 from the second inlet 103 to ensure that when the housing 1 is tilted at a certain angle, the liquid level of the lubricating oil in the oil outlet chamber 15 is higher than the outlet 102 of the housing 1, and the lubricating oil can be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0059] More preferably, the excavator chain lubricating oil tank further includes a tank cover 2, which is detachably installed on the second inlet 103 for sealing the second inlet 103; in this embodiment, the tank cover 2 is an oil filler cap.

[0060] In this embodiment, the box cover 2 is detachably installed on the second inlet 103 by means of threads.

[0061] Furthermore, the outlet 102 of the housing 1 is connected to an oil outlet pipe. One end of the oil outlet pipe is connected to the oil outlet of the housing 1, and the other end is set as a chain lubrication port. The chain lubrication port is located above the chain, so that the lubricating oil in the housing 1 can be discharged from the chain lubrication port through the oil outlet pipe and flow onto the chain to lubricate the chain.

[0062] In this embodiment, the four side walls of the box 1 are all perpendicular to the adjacent box walls;

[0063] When the excavator head changing device is operating normally, the housing 1 will usually tilt along the length or width direction of the housing 1 with the excavator head changing device.

[0064] More preferably, the outlet 102 of the box body 1 is located at the bottom center of the box body 1.

[0065] Furthermore, when the housing 1 is tilted along its length toward the side away from the first through hole 111, the maximum tilting angle at which oil can be discharged is 145°, and when the housing 1 is tilted along its width toward the side away from the first through hole 111, the maximum tilting angle at which oil can be discharged is 120°. When the housing 1 is tilted along its length or width not exceeding the maximum tilting angle, the level of the lubricating oil in the oil outlet chamber 15 is higher than the outlet 102 of the housing 1, and the lubricating oil can be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0066] In use, the first inlet 101 of the housing 1 can be connected to the air supply device. The first one-way valve is connected between the first inlet 101 of the housing 1 and the air supply device. The air supply device supplies air to the housing 1 from the first inlet 101 to increase the air pressure in the housing 1, which forces the lubricating oil in the housing 1 to be discharged from the outlet 102 in the housing 1. The lubricating oil is then discharged from the chain lubricating oil port through the oil outlet pipe and flows onto the chain to lubricate the chain.

[0067] Alternatively, an oil suction pump can be installed on the oil outlet line to pump the lubricating oil in the housing 1 out of the outlet 102 of the housing 1, and discharge it through the oil outlet line from the chain lubricating oil port to the chain for lubrication.

[0068] In this embodiment, a first partition 11 is provided inside the housing 1 to divide the housing 1 into an air inlet chamber 13 and an oil outlet chamber 15 from top to bottom. The first partition 11 is provided with a first through hole 111. The lubricating oil and gas in the housing 1 can flow between the air inlet chamber 13 and the oil outlet chamber 15 through the first through hole 111. When the housing 1 is tilted at a large angle in any direction away from the first through hole 111 by the excavator head changing device, the lubricating oil can still be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0069] Example 2

[0070] This embodiment is basically the same as embodiment 1, except that:

[0071] like Figure 6-8 ( Figure 7-8 As shown in the red dashed line (representing the lubricating oil level), this embodiment provides an excavator chain lubricating oil tank. The tank body 1 is provided with a second partition 12, which is located below the first partition 11. The lubricating oil tank is divided from top to bottom by the first partition 11 and the second partition 12 into an air intake chamber 13, an intermediate chamber 14 and an oil outlet chamber 15.

[0072] The second partition 12 is provided with a second through hole 121 at the opposite corner of the first corner. The air inlet chamber 13, the intermediate chamber 14 and the oil outlet chamber 15 are connected in sequence through the first through hole 111 and the second through hole 121, so that the lubricating oil and gas in the lubricating oil tank can flow between the air inlet chamber 13, the intermediate chamber 14 and the oil outlet chamber 15.

[0073] During use, the housing 1 is not tilted or tilted in any direction. When the level of the lubricating oil in the oil outlet chamber 15 is higher than the outlet 102 of the housing 1, the lubricating oil can be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0074] When the housing 1 is tilted to both sides along its length, the maximum tilting angle at which oil can be discharged is 145°. When the housing 1 is tilted to both sides along its width, the maximum tilting angle at which oil can be discharged is 120°. When the housing 1 is tilted to the sides along its length or width without exceeding the maximum tilting angle, the level of the lubricating oil in the oil outlet chamber 15 is higher than the outlet 102 of the housing 1, and the lubricating oil can be discharged from the outlet 102 of the housing 1, thereby lubricating the excavator chain.

[0075] In this embodiment, the housing 1 is divided from top to bottom into an air intake chamber 13, an intermediate chamber 14, and an oil outlet chamber 15 by setting a first partition 11 and a second partition 12 inside the housing 1. The first partition 11 is provided with a first through hole 111, and the second partition 12 is provided with a second through hole 121. The lubricating oil and gas in the housing 1 can flow between the air intake chamber 13, the intermediate chamber 14, and the oil outlet chamber 15 through the first through hole 111 and the second through hole 121. When the housing 1 is tilted at a large angle in any direction by the excavator head changing device, the lubricating oil can still be discharged from the outlet 102 of the housing 1, thereby using the lubricating oil to lubricate the excavator chain.

[0076] Example 3

[0077] This embodiment is basically the same as embodiment 1, except that:

[0078] This embodiment provides an excavator chain lubrication oil tank. The first inlet 101 of the tank body 1 is not connected to the interior of the tank body 1. The second inlet 103 is used for air intake into the tank body 1, or for replenishing lubricating oil into the tank body 1 through the second inlet 103. More preferably, the excavator chain lubrication oil tank further includes a second one-way valve, which is detachably mounted on the tank cover 2. The outlet of the second one-way valve is connected to the second inlet 103, allowing gas or lubricating oil to flow unidirectionally from the second inlet 103 into the tank body 1. When the tank body 1 is tilted, this prevents gas and / or lubricating oil from escaping from the second inlet 103.

[0079] Example 4

[0080] This embodiment is basically the same as embodiment 1, except that:

[0081] This embodiment provides an excavator chain lubrication oil tank, wherein a level gauge is provided on the outside of the tank body 1, and the lowest level height of the level gauge is the same as the height of the first partition 11, for detecting the level of lubricating oil in the tank body 1.

[0082] Before use, the level of the lubricating oil in the tank 1 is observed by the level gauge to see if it is higher than the height of the first partition 11. If the level of the lubricating oil in the tank 1 is lower than the height of the first partition 11, lubricating oil needs to be added to the tank 1 to ensure that the cavity below the first partition 11 of the tank 1 is filled with lubricating oil. This ensures that when the tank 1 is tilted at a large angle, the level of the lubricating oil in the oil outlet 15 can be higher than the outlet 102 of the tank 1, and the lubricating oil can be discharged from the outlet 102 of the tank 1, thereby lubricating the excavator chain.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chain lubrication oil tank for excavators, characterized in that, include: The housing and the first partition; The enclosure is used to store lubricating oil; The first partition is disposed inside the housing, and the housing is divided into an air inlet chamber and an oil outlet chamber from top to bottom by the first partition; The first partition has a first through hole at its first corner. The air inlet chamber and the oil outlet chamber are connected through the first through hole, so that the lubricating oil and gas in the housing can flow between the air inlet chamber and the oil outlet chamber. The top of the housing is provided with a first inlet, which is connected to the air intake chamber for air intake or for replenishing lubricating oil into the housing from the first inlet; The bottom of the housing is provided with an outlet, which is connected to the oil outlet chamber for discharging lubricating oil from the housing.

2. The excavator chain lubrication oil tank according to claim 1, characterized in that, The housing is provided with a second partition, which is located below the first partition. The lubricating oil tank is divided from top to bottom into an air inlet chamber, an intermediate chamber, and an oil outlet chamber by the first partition and the second partition. The second partition has a second through hole at the opposite corner of the first corner. The air inlet chamber, the intermediate chamber and the oil outlet chamber are connected in sequence through the first through hole and the second through hole, so that the lubricating oil and gas in the lubricating oil tank can flow between the air inlet chamber, the intermediate chamber and the oil outlet chamber.

3. The excavator chain lubrication oil tank according to claim 1, characterized in that, It also includes a first check valve, which is detachably installed at the first inlet for unidirectional flow of gas or lubricating oil from the first inlet into the housing, preventing gas and / or lubricating oil from escaping from the first inlet from the housing.

4. The excavator chain lubrication oil tank according to claim 1, characterized in that, The top of the housing is also provided with a second inlet, which is connected to the air intake chamber and is used to replenish lubricating oil into the housing from the second inlet. The first inlet is used for air intake of the housing.

5. The excavator chain lubrication oil tank according to claim 4, characterized in that, It also includes a lid, which is detachably mounted on the second inlet for sealing the second inlet.

6. The excavator chain lubrication oil tank according to claim 4, characterized in that, The first inlet of the box is not connected to the inside of the box; The second inlet is used for air intake of the housing, or for replenishing lubricating oil into the housing from the second inlet.

7. The excavator chain lubrication oil tank according to claim 6, characterized in that, It also includes a second one-way valve, which is connected to the second inlet and is used for unidirectional flow of gas or lubricating oil from the second inlet into the housing, preventing gas and / or lubricating oil in the housing from being discharged from the second inlet.

8. The excavator chain lubrication oil tank according to claim 1, characterized in that, A level gauge is installed on the outside of the box. The lowest level of the level gauge is the same as the height of the first partition, and it is used to detect the level of lubricating oil in the box.

9. The excavator chain lubrication oil tank according to claim 1, characterized in that, The outlet of the housing is connected to an oil outlet pipe. One end of the oil outlet pipe is connected to the oil outlet of the housing, and the other end is set as a chain lubrication port. The chain lubrication port is located above the chain, so that the lubricating oil in the housing can be discharged from the chain lubrication port through the oil outlet pipe and flow onto the chain to lubricate it.

10. The excavator chain lubrication oil tank according to claim 1, characterized in that, The four side walls of the box are all perpendicular to the adjacent box walls.