A mesh belt driven defoaming mechanism and hydraulic oil tank

Abstract

The present invention discloses a mesh belt transmission defoaming mechanism and a hydraulic oil tank, comprising a defoaming mechanism, the defoaming mechanism comprising a defoaming mesh belt, the defoaming mesh belt is driven by a plurality of rollers to realize cyclic rotation, the defoaming mesh belt is formed by the cooperation of a plurality of rollers to form at least one defoaming mesh area unit, the defoaming mesh area unit is used to realize the spacing between the upstream part and the downstream part, the defoaming mesh area unit is composed of a defoaming mesh belt driven to the area and a roller used to cooperate with the defoaming mesh belt of this part, the defoaming mesh belt in the defoaming mesh area unit is divided into a first defoaming mesh belt area and a second defoaming mesh belt area, a defoaming gap is formed between the first defoaming mesh belt area and the second defoaming mesh belt area, and the defoaming mesh belts in the first defoaming mesh belt area and the second defoaming mesh belt area move in opposite directions. The present invention optimizes the defoaming mechanism and adopts multiple dynamic defoaming treatments, which can realize the active collision elimination of bubbles inside the oil body and improve the defoaming effect.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic oil tanks, and in particular to a mesh belt driven defoaming mechanism and a hydraulic oil tank. Background Art

[0002] During the operation of the existing hydraulic system, the pressure and flow rate of the circulating loop change all the time, causing a large number of bubbles to be mixed into the hydraulic system, especially the return oil flowing back to the hydraulic oil tank contains a large number of visible bubbles. Bubbles with larger diameters can quickly float up and escape from the hydraulic oil surface, but most of the bubbles with smaller diameters do not have time to escape and are sucked into the pump with the flowing hydraulic oil and re-enter the working hydraulic system. These hydraulic oils mixed with a large number of bubbles will cause great harm to the hydraulic system.

[0003] To this end, as disclosed in the announcement number CN113565806A, a defoaming oil filter and a hydraulic oil tank are disclosed, wherein the defoaming oil filter is composed of a plate-shaped oil filter, an upstream porous filter plate and a downstream porous filter plate respectively arranged upstream and downstream in the oil flow direction of the oil filter; the oil filter includes a square frame and a square plate-shaped filter element fixedly installed in the frame; the upstream porous filter plate and the downstream porous filter plate are both provided with a vertical oil passage chamber between the oil filter; the upstream porous filter plate and the downstream porous filter plate are both provided with an oil passage hole group, the oil passage resistance of the middle and upper part of the upstream porous filter plate is less than the oil passage resistance of the lower part, and the oil passage resistance of the middle and upper part of the downstream porous filter plate is greater than the oil passage resistance of the lower part. In the present invention, by providing a porous filter plate, the flow direction of the oil is changed, the flow stroke is increased, sufficient time is provided for the bubbles to float, and the defoaming efficiency is improved.

[0004] The above technical solution adopts a matching structure of an upstream porous filter plate and a downstream porous filter plate, but the upstream porous filter plate and the downstream porous filter plate are both in a fixed state. The bubbles in the oil body are eliminated by adding polygonal filter holes and a rough bubble adsorption surface structure. However, this type of structure adopts a static defoaming structure. Although it can eliminate most bubbles, it still has certain defoaming limitations. Summary of the invention

[0005] The purpose of the present invention is to provide a mesh belt driven defoaming mechanism and a hydraulic oil tank to solve the above technical problems, optimize the defoaming mechanism, and adopt multiple dynamic defoaming treatments to achieve active collision elimination of bubbles inside the oil body and improve the defoaming effect.

[0006] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0007] A mesh belt driven defoaming mechanism comprises a defoaming mechanism, wherein the defoaming mechanism comprises a defoaming mesh belt, the defoaming mesh belt is driven by a plurality of rollers to realize circular rotation, the defoaming mesh belt is cooperated with the plurality of rollers to form at least one defoaming mesh area unit, the defoaming mesh area unit is used to realize the spacing between the upstream part and the downstream part, the defoaming mesh area unit is composed of the defoaming mesh belt driven to the area and the rollers used to cooperate with the part of the defoaming mesh belt, the defoaming mesh belt in the defoaming mesh area unit is divided into a first defoaming mesh belt area and a second defoaming mesh belt area, a defoaming gap is formed between the first defoaming mesh belt area and the second defoaming mesh belt area, and the defoaming mesh belts in the first defoaming mesh belt area and the second defoaming mesh belt area move in opposite directions.

[0008] The defoaming mesh belt is provided with a plurality of oil through holes, and a single oil through hole is matched with a defoaming spoiler, and the defoaming spoiler is located on the upper surface and the lower surface of the defoaming mesh belt.

[0009] The defoaming spoiler is located at the outer side of the oil passage and is extended outward. The defoaming spoilers located in the first defoaming mesh belt area and the second defoaming mesh belt area move in opposite directions and form a defoaming operation by interlacing.

[0010] The plurality of oil through holes are arranged in a matrix structure, and the defoaming spoilers in the same row are arranged at intervals.

[0011] The roller shaft is provided with a groove for the defoaming spoiler to pass through. The roller shaft in a single defoaming net area unit includes an upper roller shaft, a limiting roller shaft and a lower roller shaft. A transition roller shaft is provided between any two adjacent defoaming net area units. The defoaming net area units at the head and tail ends are also provided with a front roller shaft and a terminal roller shaft respectively.

[0012] The front roller shaft or the rear roller shaft is used to cooperate with the driving shaft, and the driving shaft is equipped with a driving device.

[0013] The upper roller and the lower roller are arranged in a longitudinal staggered manner, the limiting roller and the lower roller are in the same longitudinal arrangement, the defoaming mesh belt moves around the upper roller and the lower roller, the limiting roller is used to resist the defoaming mesh belt, and the limiting roller is close to the position of the upper roller.

[0014] The defoaming mesh belt is wrapped around the front roller shaft, passes through the upper roller shaft in the first defoaming mesh area unit, and is continuously tensioned by the limiting roller shaft before being wrapped around and matched with the lower roller shaft in the first defoaming mesh area unit. After completing the transmission reversal through the adjacent transition roller shaft, it is wrapped around and matched with the upper roller shaft in the second defoaming mesh area unit, and is continuously tensioned by the limiting roller shaft before being wrapped around and matched with the lower roller shaft in the second defoaming mesh area unit, until it is completed to be wrapped around and matched with the lower roller shaft in the defoaming mesh area unit at the end, and then the reversal is completed through the end roller shaft and docked with the front roller shaft.

[0015] A hydraulic oil tank based on a mesh belt drive defoaming mechanism comprises the mesh belt drive defoaming mechanism described above, and also comprises a box body, wherein a cavity is provided in the box body, wherein the cavity is used to store hydraulic oil, and the cavity is divided into an upstream part and a downstream part by the defoaming mechanism, wherein the hydraulic oil passes through the defoaming mechanism from the upstream part and enters the downstream part, wherein the upstream part is used to cooperate with the oil inlet end, and the downstream part is used to cooperate with the oil outlet end, and the highest oil level of the hydraulic oil is not higher than the position of the upper roller shaft.

[0016] An oil baffle is arranged in the box body, and the oil baffle is used to separate the front roller shaft and the rear roller shaft from each other at the lower part of the horizontal plane, and the oil baffle is close to the defoaming mesh belt.

[0017] Compared with the prior art, the present invention has the following outstanding advantages and effects: the present invention optimizes the design of the defoaming mechanism, adopts dynamic defoaming treatment, optimizes the defoaming mesh belt structure, utilizes the oil through port to achieve oil flow, utilizes the defoaming spoiler in combination with the mesh belt transmission structure, and optimizes the spatial arrangement of the defoaming mesh area unit, so that after the hydraulic oil flows through the oil through port, the bubbles in the hydraulic oil body can be eliminated due to collision, and the defoaming spoiler can achieve reverse movement on both sides of the longitudinal position due to the optimization of the mesh belt transmission structure, thereby increasing the bubble elimination effect.

[0018] The features of the present invention can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The defoaming mechanism structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 It is a schematic diagram of the defoaming mesh belt structure of the present invention;

[0021] Figure 3 The defoaming mechanism structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 4 It is a schematic diagram of the roller structure of the present invention;

[0023] Figure 5It is a schematic diagram of the structure of the hydraulic oil tank of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the hydraulic oil tank of the present invention;

[0025] Figure 7 It is a schematic diagram of the principle of forming large bubbles after mixing flow in the defoaming gap of the present invention;

[0026] Among them, 1. defoaming mesh belt; 11. oil through port; 12. defoaming spoiler; 2. roller; 21. upper roller; 22. limit roller; 23. lower roller; 24. transition roller; 25. front roller; 26. rear roller; 27. groove; 3. driving device; 31. driving shaft; 4. defoaming mechanism; 41. defoaming mesh area unit; 42. first defoaming mesh belt area; 43. second defoaming mesh belt area; 44. defoaming gap; 5. box; 51. oil inlet end; 52. oil outlet end; 53. upstream part; 54. downstream part; 55. oil baffle. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and there are specific positional relationship descriptions in the specification, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, specific direction structure and operation, and therefore cannot be understood as limiting the present invention. Similarly, "one", "first", "an" or "the" and similar words do not indicate a quantity limitation, but indicate that there is at least one.

[0029] Example 1

[0030] like Figures 1 to 7 As shown, the present invention provides a mesh belt drive defoaming mechanism, including a defoaming mechanism 4, the defoaming mechanism 4 includes a defoaming mesh belt 1, the defoaming mesh belt 1 is driven by a plurality of rollers 2 to realize circular rotation, the defoaming mesh belt 1 is formed by the cooperation of a plurality of rollers 2 to form at least one defoaming mesh area unit 41, the defoaming mesh area unit 41 is used to realize the spacing between the upstream part 53 and the downstream part 54, and the hydraulic oil body completes the elimination of internal bubbles by flowing through the defoaming mesh area unit 41.

[0031] In the specific structure, the defoaming mesh area unit 41 is composed of a defoaming mesh belt 1 transmitted to the area and a roller 2 used to cooperate with the part of the defoaming mesh belt 1. The defoaming mesh belt 1 in the defoaming mesh area unit 41 is divided into a first defoaming mesh belt area 42 and a second defoaming mesh belt area 43. A defoaming gap 44 is formed between the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43. The defoaming mesh belts 1 in the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43 move in opposite directions; wherein, the defoaming mesh belt 1 is always in a rotating state during the defoaming treatment process. For this reason, the defoaming mesh belt 1 in the defoaming mesh area unit 41 is in a moving state, wherein the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43 are usually arranged on both sides to form a forward and reverse relative transmission cooperation, thereby achieving better defoaming treatment.

[0032] Among them, a plurality of oil passages 11 are provided on the defoaming mesh belt 1, and a single oil passage 11 is cooperated with a defoaming spoiler 12, and the defoaming spoiler 12 is located on the upper surface and the lower surface of the defoaming mesh belt 1; the defoaming spoiler 12 is located on the outer side of the oil passage 11 and is extended outward, and the defoaming spoilers 12 located in the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43 move in opposite directions, and a defoaming operation is formed by interlacing; wherein the defoaming spoiler 12 preferably adopts a semi-arc plate structure design.

[0033] At the same time, a double-sided defoaming spoiler 12 is used so that after the defoaming mesh belt 1 is surrounded by the roller 2, the defoaming mesh belts 1 on the opposite sides have the defoaming spoilers 12 arranged relatively, thereby increasing the overall defoaming effect.

[0034] In one of the preferred embodiments, a plurality of oil holes 11 are arranged in a matrix structure, and the defoaming spoilers 12 in the same row are arranged at intervals. By optimizing the arrangement structure, a more regular defoaming treatment area can be formed, thereby achieving more effective defoaming treatment.

[0035] In one of the preferred embodiments, a groove 27 is provided on the roller shaft 2 , and the groove 27 is used for the defoaming spoiler 12 to pass through, so as to facilitate the transmission of the defoaming mesh belt 1 .

[0036] Among them, the rollers in a single defoaming net area unit 41 include an upper roller 21, a limiting roller 22 and a lower roller 23, and a transition roller 24 is provided between any two adjacent defoaming net area units 41. The defoaming net area units 41 at the head and tail ends are also provided with a front roller 25 and a terminal roller 26 respectively; the front roller 25 or the terminal roller 26 is used to cooperate with the drive shaft 31, and the drive shaft 31 is provided with a drive device 3; wherein the drive device 3 is preferably driven by a motor, which adopts a commonly used drive structure in the prior art, which will not be repeated here; the drive device 3 is used to realize the active transmission of at least one roller 2, and combined with the drive of the defoaming net belt 1, the remaining rollers realize driven rotation.

[0037] In one of the preferred embodiments, the upper roller 21 and the lower roller 23 are arranged in a longitudinal staggered manner, the limiting roller 22 and the lower roller 23 are arranged in the same longitudinal direction, the defoaming mesh belt 1 moves around the upper roller 21 and the lower roller 23, the limiting roller 22 is used to resist the defoaming mesh belt 1, and the limiting roller 22 is close to the position of the upper roller 21; the spatial arrangement structure of the upper roller 21, the lower roller 23, and the limiting roller 22 is optimized. Because the roller itself has a large outer diameter, the spacing between the defoaming mesh belts 1 after the wrapping is affected by the outer diameter of the roller. The diameter size is affected, and the volume of bubbles in the hydraulic oil body is relatively small. Therefore, it is necessary to obtain a better defoaming gap. It is necessary to increase the setting of a limiting roller 22 so that the gap between the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43 can be reduced to the designed size, thereby further increasing the defoaming effect formed between the defoaming spoilers; in addition, the position height of the limiting roller 22 is optimized to make it as close to the position of the upper roller 21 as possible, thereby increasing the effective defoaming gap space 44 between the first defoaming mesh belt area 42 and the second defoaming mesh belt area 43.

[0038] Among them, the wrapping structure between the defoaming mesh belt 1 and the roller 2 is specifically as follows: the defoaming mesh belt 1 wraps around the front roller 25 and then wraps around the upper roller 21 in the first defoaming mesh area unit 41, and continues to be tensioned by the limiting roller 22 and then wraps around and cooperates with the lower roller 23 in the first defoaming mesh area unit 41, and completes the transmission reversal through the adjacent transition roller 24 and then wraps around and cooperates with the upper roller 21 in the second defoaming mesh area unit 41, and continues to be tensioned by the limiting roller 22 and then wraps around and cooperates with the lower roller 23 in the second defoaming mesh area unit 41, until it completes the wrapping and cooperation with the lower roller 23 in the defoaming mesh area unit 41 at the end, and then completes the reversal through the end roller 26 and completes docking with the front roller 25.

[0039] The present invention optimizes the defoaming mechanism, adopts dynamic defoaming treatment, optimizes the defoaming mesh belt structure, uses the oil through hole to realize oil flow, uses the defoaming spoiler combined with the mesh belt transmission structure, optimizes the spatial arrangement of the defoaming mesh area unit, so that after the hydraulic oil flows through the oil through hole, the bubbles in the hydraulic oil can be eliminated due to collision. The defoaming spoiler can realize reverse movement on both sides of the longitudinal position due to the optimization of the mesh belt transmission structure, thereby increasing the bubble elimination effect ( Figure 1 , Figure 2 , Figure 4 Part of the defoaming spoiler 12 is omitted. Figure 3 Most of the oil passages 11 are provided with defoaming spoilers 12. In practice, it is preferred that each oil passage 11 is provided with a defoaming spoiler 12, and the attached figure is only for illustration).

[0040] Example 2

[0041] Based on Example 1, this embodiment discloses a hydraulic oil tank based on a mesh belt drive defoaming mechanism, including the mesh belt drive defoaming mechanism in Example 1, and also including a box body 5, a cavity is provided in the box body 5, the cavity is used to store hydraulic oil, the cavity is divided into an upstream part 53 and a downstream part 54 by the defoaming mechanism, the hydraulic oil passes through the defoaming mechanism 4 from the upstream part 53 and enters the downstream part 54, the upstream part 53 is used to cooperate with the oil inlet end 51, and the downstream part 54 is used to cooperate with the oil outlet end 52, and the highest oil level of the hydraulic oil is not higher than the position of the upper roller 21; an oil baffle plate 55 is provided in the box body 5, and the oil baffle plate 55 is close to the surface of the defoaming mesh belt 1, and the gap between the two is smaller than the defoaming gap; the oil baffle plate 55 is used to block the lower part of the horizontal plane where the front roller 25 and the end roller 26 are located to prevent the upstream part 53 and the downstream part 54 from directly penetrating.

[0042] Among them, the circulation of the hydraulic oil body between the upstream part 53 and the downstream part 54 is usually a lateral flow, and the defoaming mechanism 4 is optimized in design, wherein the defoaming net area unit 41 used to achieve the spacing between the upstream part 53 and the downstream part 54 is longitudinally arranged, so that after the hydraulic oil body flows horizontally, the defoaming spoiler 12 is used to achieve longitudinal turbulence treatment, thereby increasing the effect of eliminating the bubbles in the hydraulic oil body.

[0043] After adopting the above structure, the bubbles in the hydraulic oil body pass through the transmission oil port 11 during the process of passing through the defoaming mechanism 4, and the positive and negative turbulence effects achieved by the defoaming spoiler 12 are combined, so that the bubbles in the hydraulic oil body are continuously impacted and disturbed, so that the bubbles collide with each other to form large bubbles, which are eliminated after floating upward. In addition, combined with the structural design of the defoaming mesh belt 1, due to the interaction force in the liquid, the defoaming mesh belt 1 has a relatively better molecular force, so that the bubbles in the hydraulic oil body are automatically adsorbed to the surface of the defoaming mesh belt 1 on the solid surface, so that the bubbles in the hydraulic oil body are gradually converted into large bubbles, and combined with the continuous treatment of multiple defoaming mesh area units 41, the bubbles in the hydraulic oil body gradually form large bubbles, which are eliminated after floating. When the mesh belt drive defoaming mechanism is defoaming, it is preferred that the mesh belt drive defoaming mechanism is completely immersed in oil, that is, it is operated under high oil state. Under low business state, when the oil cannot completely immerse the mesh belt drive defoaming mechanism, it is preferred that the defoaming mesh belt 1 stops conveying.

[0044] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A mesh belt drive defoaming mechanism, comprising a defoaming mechanism, characterized in that: The defoaming mechanism includes a defoaming mesh belt, which is driven by a plurality of rollers to realize circular rotation. The defoaming mesh belt is formed by the cooperation of the plurality of rollers to form at least one defoaming mesh area unit, and the defoaming mesh area unit is used to realize the spacing between the upstream part and the downstream part. The defoaming mesh area unit is composed of a defoaming mesh belt transmitted to the area and a roller used to cooperate with the defoaming mesh belt in the area. The defoaming mesh belt in the defoaming mesh area unit is divided into a first defoaming mesh belt area and a second defoaming mesh belt area. A defoaming gap is formed between the first defoaming mesh belt area and the second defoaming mesh belt area, and the defoaming mesh belts in the first defoaming mesh belt area and the second defoaming mesh belt area move in opposite directions.

2. The mesh belt drive defoaming mechanism according to claim 1, characterized in that: The defoaming mesh belt is provided with a plurality of oil through holes, and a single oil through hole is matched with a defoaming spoiler, and the defoaming spoiler is located on the upper surface and the lower surface of the defoaming mesh belt.

3. A mesh belt drive defoaming mechanism according to claim 2, characterized in that: The defoaming spoiler is located at the outer side of the oil passage and is extended outward. The defoaming spoilers located in the first defoaming mesh belt area and the second defoaming mesh belt area move in opposite directions and form a defoaming operation by interlacing.

4. The mesh belt drive defoaming mechanism according to claim 2, characterized in that: The plurality of oil through holes are arranged in a matrix structure, and the defoaming spoilers in the same row are arranged in an interval arrangement.

5. The mesh belt drive defoaming mechanism according to claim 1, characterized in that: The roller shaft is provided with a groove for the defoaming spoiler to pass through. The roller shaft in a single defoaming net area unit includes an upper roller shaft, a limiting roller shaft and a lower roller shaft. A transition roller shaft is provided between any two adjacent defoaming net area units. The defoaming net area units at the head and tail ends are also provided with a front roller shaft and a terminal roller shaft respectively.

6. The mesh belt drive defoaming mechanism according to claim 5, characterized in that: The front roller shaft or the rear roller shaft is used to cooperate with the driving shaft, and the driving shaft is equipped with a driving device.

7. The mesh belt drive defoaming mechanism according to claim 5, characterized in that: The upper roller and the lower roller are arranged in a longitudinal staggered manner, the limiting roller and the lower roller are in the same longitudinal arrangement, the defoaming mesh belt moves around the upper roller and the lower roller, the limiting roller is used to resist the defoaming mesh belt, and the limiting roller is close to the position of the upper roller.

8. The mesh belt drive defoaming mechanism according to claim 7, characterized in that: The defoaming mesh belt is wrapped around the front roller shaft, passes through the upper roller shaft in the first defoaming mesh area unit, and is continuously tensioned by the limiting roller shaft before being wrapped around and matched with the lower roller shaft in the first defoaming mesh area unit. After completing the transmission reversal through the adjacent transition roller shaft, it is wrapped around and matched with the upper roller shaft in the second defoaming mesh area unit, and is continuously tensioned by the limiting roller shaft before being wrapped around and matched with the lower roller shaft in the second defoaming mesh area unit, until it is completed to be wrapped around and matched with the lower roller shaft in the defoaming mesh area unit at the end, and then the reversal is completed through the end roller shaft and docked with the front roller shaft.

9. A hydraulic oil tank based on a mesh belt drive defoaming mechanism, characterized in that: It comprises the mesh belt driven defoaming mechanism as described in any one of claims 6 to 8, and also comprises a box body, wherein a cavity is provided in the box body, wherein the cavity is used to store hydraulic oil, wherein the cavity is divided into an upstream part and a downstream part by the defoaming mechanism, wherein the hydraulic oil enters the downstream part after passing through the defoaming mechanism from the upstream part, wherein the upstream part is used to cooperate with the oil inlet end, and the downstream part is used to cooperate with the oil outlet end, and the highest oil level of the hydraulic oil is not higher than the position of the upper roller shaft.

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