CN214945327U - Engineering machinery frame assembly and engineering machinery - Google Patents

Abstract

The utility model relates to an engineering machine tool's oil tank technical field discloses an engineering machine tool frame assembly and engineering machine tool. Engineering machine tool frame assembly includes the support body and sets up first oil tank and second oil tank on the support body, first oil tank with second oil tank mutual independence, wherein, first oil tank is including being arranged in carrying out the water collection structure of collecting to the water that appears or separates out from fluid, water collection structure is including the chamber that catchments that has the water inlet, be provided with the first oily structure of mistake that allows fluid to pass through in order to spill over the gas in the fluid in the second oil tank. The engineering machinery frame assembly can meet different requirements of different hydraulic execution systems on hydraulic oil through mutually independent oil tanks, slow down emulsification of hydraulic oil of the corresponding hydraulic execution systems, reduce the replacement frequency of the hydraulic oil, reduce the oil consumption cost, and improve the efficiency of hydraulic execution components so as to avoid the phenomenon of soft legs or arm falling.

Description

Engineering machinery frame assembly and engineering machinery

Technical Field

The utility model relates to an engineering machine tool's oil tank technical field specifically relates to an engineering machine tool frame assembly and an engineering machine tool.

Background

Construction machines, such as pump trucks, are typically driven by hydraulic components to perform the associated actions of delivering concrete to a designated area at a construction site. After the pump truck travels to a working area, the front supporting leg and the rear supporting leg are opened to a designated area, the pump truck pumps the conveying power of concrete, and the motion power sources of the actions such as amplitude variation and rotation of the arm support are all hydraulically driven. Hydraulic oil is a key transmission medium, and the hydraulic oil tank of the pump truck is a container for storing hydraulic oil to store and exchange the hydraulic oil.

However, after a period of actual use, the hydraulic oil is easy to emulsify, so that damage is caused to hydraulic actuating components, when the hydraulic oil needs to be replaced, the oil in the hydraulic system and the hydraulic oil tank needs to be replaced completely, the oil replacing amount is large once, the liquid replacing frequency is high, in addition, the hydraulic driving force is insufficient, the efficiency of the hydraulic actuating components is reduced, and for example, the arm falling phenomenon of a soft leg or an arm support of a supporting leg can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an engineering machine tool frame assembly, this engineering machine tool frame assembly can satisfy different hydraulic execution system through mutually independent oil tank and to the different demands of hydraulic oil, slow down the emulsification of corresponding hydraulic execution system's hydraulic pressure fluid, reduce hydraulic pressure fluid once trade the oil mass and change the frequency, ensure the hydraulic pressure drive power of hydraulic pressure fluid to avoid soft leg or fall the arm phenomenon.

In order to achieve the above object, the utility model provides an engineering machine tool frame assembly, this engineering machine tool frame assembly include the support body and set up first oil tank and second oil tank on the support body, first oil tank with second oil tank mutual independence, wherein, first oil tank is including being used for the water collection structure that separates out or the water that separates out from fluid carries out the collection, water collection structure is including the chamber that catchments that has the water inlet, be provided with the first oily structure of passing through in order to spill over the gas with in the fluid of permission fluid in the second oil tank.

In the technical scheme, the frame body is provided with the first oil tank and the second oil tank which are mutually independent, so that the first oil tank and the second oil tank can supply hydraulic oil to different hydraulic execution systems, thereby meeting different requirements of different hydraulic execution systems on the hydraulic oil, meanwhile, the first oil tank comprises a water collecting structure for collecting water separated or separated from the oil, the water collecting structure comprises a water collecting cavity with a water inlet, meanwhile, the second oil tank is internally provided with a first oil passing structure which allows the oil to pass so as to overflow gas in the oil, so that the water separated or separated from the hydraulic oil in the first oil tank can be collected in the water collecting cavity, thereby effectively reducing the moisture content in the hydraulic oil, slowing down the emulsification of the hydraulic oil, reducing the replacement frequency of the hydraulic oil, and bubbles in the hydraulic oil can be overflowed when the hydraulic oil in the second oil tank passes through the first oil passing structure, thereby effectively reducing the gas content in the hydraulic oil and ensuring the hydraulic driving force of the hydraulic oil to avoid the phenomenon of soft legs or arm falling. For example, a first tank may supply hydraulic fluid to a hydraulic implement system that is prone to moisture (i.e., a hydraulic implement system that is prone to moisture ingress into hydraulic fluid), while a second tank may supply hydraulic fluid to a hydraulic implement system that has a higher demand for hydraulic drive power.

Further, the water inlet is covered with an oil-blocking and water-permeable membrane.

Still further, the first oil tank includes a water baffle supported on and covering the port edge of the water inlet by a connector that forms a water passing gap between the water baffle and the port edge.

Furthermore, the connecting piece is used for fixing and positioning the oil and water blocking and permeating membrane, and/or the connecting piece is a magnet adsorbed on the edge of the mouth.

Further, the water collecting structure is provided on a first bottom wall of the first oil tank, the water inlet is formed at a lowest position of the first bottom wall, and the water collecting chamber is located outside the first oil tank.

Furthermore, the engineering machinery frame assembly comprises at least one of the following modes: the first method is as follows: the first oil tank comprises a first oil return cover, the first oil return cover divides the inner space of the first oil tank into an oil return cavity and an oil suction cavity, and the water collecting structure is arranged on part of the bottom wall of the first bottom wall, which is positioned in the oil suction cavity; a second oil passing structure for allowing oil liquid in the oil return cavity to pass through and enabling gas to overflow from the oil liquid is formed at the upper part of the first oil return cover, and a water passing hole for allowing water deposited in the oil return cavity to pass through so as to flow to the water inlet is formed at the bottom of the first oil return cover; the second method comprises the following steps: the water inlet is formed on the first bottom wall, the water collecting structure comprises a water collecting box which is arranged on the outer surface of the first bottom wall and is provided with the water collecting cavity, or a part of the first bottom wall is bent outwards and protrudes to form a protruding part with the water collecting cavity.

Furthermore, the engineering machinery frame assembly comprises a first oil passing structure, a second oil passing structure and a second oil passing structure, wherein the second oil passing structure comprises a grid structure, the grid structure comprises a plurality of spaced strip-shaped holes, a plurality of spaced bulges are respectively formed on two long edges opposite to each strip-shaped hole, concave parts are formed between the adjacent bulges, and each bulge on one long edge is opposite to each concave part on the other long edge and is close to each other;

and/or the presence of a gas in the gas,

the first diapire be located the oil absorption intracavity be provided with the water shield through support piece on the part diapire, the water shield with hold the water space between the part diapire, hold the water space with the water inlet intercommunication.

In addition, the second oil tank includes the second cover that returns oil, the second cover that returns oil will the inner space of second oil tank separates into oil return chamber, surge chamber and inhales the oil chamber, wherein, first oily structure of crossing forms on the second returns oil cover in order to be used for allowing the interior fluid of oil return chamber passes through in order to flow in the surge chamber, the locular wall of surge chamber sets up to follow oil return chamber flows in at least partly fluid in the surge chamber is in the surge chamber deposit and flow in after the oil liquid level crosses the locular wall inhale the oil chamber.

Further, the second oil return cover includes hang plate and vertical curb plate, the locular wall of oil return chamber includes the hang plate with a part diapire of the second diapire of second oil tank, the locular wall of surge chamber includes the hang plate with a part of vertical curb plate, wherein, first oily structure of crossing forms on the hang plate, being located of the second diapire of second oil tank be formed with the oil drain port on the part diapire in the oil return chamber, the bottom of a part of vertical curb plate is formed with the permission oil liquid in the oil absorption chamber flows into first the hydraulic fluid port of crossing in the surge chamber, the bottom of hang plate is formed with the permission fluid in the surge chamber flows into the hydraulic fluid port is crossed to the second in the oil return chamber.

Further, the second bottom wall of the second oil tank includes a wall portion extending upward in a height direction of the second oil tank, wherein the chamber wall of the buffer chamber includes the wall portion, and wherein an inner dimension of the buffer chamber is enlarged upward in the height direction of the second oil tank.

In addition, the first oil passing structure comprises a grid structure, the grid structure comprises a plurality of spaced strip-shaped holes, a plurality of spaced bulges are formed on two opposite long sides of each strip-shaped hole respectively, and a concave part is formed between every two adjacent bulges.

In addition, the first oil tank is a pumping oil tank and the second oil tank is an arm support oil tank, and/or at least one of the first oil tank and the second oil tank is independent from each other.

Furthermore, the utility model provides an engineering machine tool, engineering machine tool includes above arbitrary engineering machine tool frame assembly.

Further, the engineering machinery is a concrete pump truck.

Drawings

Fig. 1 is a schematic structural diagram of a first oil tank of an engineering machinery frame assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the first fuel tank of FIG. 1 with a portion of the outer casing removed;

FIG. 3 is a partial schematic structural view of the circled portion in FIG. 2;

FIG. 4 is a schematic view of a portion of the first tank of FIG. 2;

fig. 5 is a partial schematic structural view of a first oil tank of another frame assembly of the construction machine according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second oil tank of a frame assembly of an engineering machine according to an embodiment of the present invention, in which a portion of a housing of the second oil tank is removed;

FIG. 7 is a front structural view of the second tank of FIG. 6;

FIG. 8 is a perspective view of a second oil return cap in the second oil tank of FIG. 6;

fig. 9 is a partial structural schematic view of the second oil return cover of fig. 8.

Description of the reference numerals

1-a first oil tank, 2-a second oil tank, 3-a water collecting cavity, 4-a first oil passing structure, 5-a water baffle, 6-a magnet, 7-a first oil return cover, 8-an oil return cavity, 9-an oil suction cavity, 10-a first bottom wall, 11-a second oil passing structure, 12-a water discharge opening, 13-an oil passing opening, 14-a water collecting box, 15-a convex part, 16-a strip-shaped hole, 17-a convex part, 18-a concave part, 19-a water shielding plate, 20-a water containing space, 21-a second oil return cover, 22-an oil return chamber, 23-a buffer chamber, 24-an oil suction chamber, 25-an inclined plate, 26-a vertical side plate, 27-a second bottom wall, 28-an oil discharge opening, 29-a first oil passing opening and 30-a second oil passing opening, 31-return line, 32-suction line, 33-wall.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Referring to fig. 1, 2 and 6, the embodiment of the present invention provides an engineering machinery vehicle frame assembly, which includes a frame body (not shown), and a first oil tank 1 and a second oil tank 2 disposed on the frame body, where the first oil tank 1 and the second oil tank 2 are independent from each other, the first oil tank 1 includes a water collecting structure for collecting water separated out or separated from oil, the water collecting structure includes a water collecting cavity 3 having a water inlet, and a first oil passing structure 4 allowing oil to pass through to overflow gas in the oil is disposed in the second oil tank 2.

In the technical scheme, the frame body is provided with the first oil tank and the second oil tank which are mutually independent, so that the first oil tank and the second oil tank can supply hydraulic oil to different hydraulic execution systems, thereby meeting different requirements of different hydraulic execution systems on the hydraulic oil, meanwhile, the first oil tank comprises a water collecting structure for collecting water separated or separated from the oil, the water collecting structure comprises a water collecting cavity with a water inlet, and meanwhile, the second oil tank is internally provided with a first oil passing structure which allows the oil to pass so as to overflow gas in the oil, so that the water separated or separated from the hydraulic oil in the first oil tank can be collected in the water collecting cavity, thereby effectively reducing the moisture content in the hydraulic oil, slowing down emulsification of the hydraulic oil, slowing down or avoiding cavitation of hydraulic execution devices, and reducing the frequency of replacement of the hydraulic oil, and the hydraulic oil liquid in the second oil tank can be overflowed when passing through the first oil passing structure, so that the gas content in the hydraulic oil liquid is effectively reduced, the cavitation of a hydraulic execution device is slowed or avoided, and the hydraulic driving force of the hydraulic oil liquid is ensured to avoid the phenomenon of soft legs or arm falling. For example, a first tank may supply hydraulic fluid to a hydraulic implement system that is prone to moisture (i.e., a hydraulic implement system that is prone to moisture ingress into hydraulic fluid), while a second tank may supply hydraulic fluid to a hydraulic implement system that has a higher demand for hydraulic drive power.

In addition, in this engineering machine frame assembly, the support body can have multiple structural style, and simultaneously, first oil tank 1 and second oil tank 2 can set up in any different positions according to different demands on the support body. In addition, the number of the first oil tank 1 and the second oil tank 2 may be one, or at least one of the first oil tank and the second oil tank may be multiple independent from each other, for example, the first oil tank and the second oil tank may be multiple independent from each other, so as to meet the oil supply requirements of different hydraulic execution systems, which may be selected according to actual requirements.

In addition, in first oil tank 1, can cover on the water inlet of water collecting cavity 3 and keep off oily membrane (not shown) of permeating water, keep off oily membrane of permeating water can block hydraulic fluid in order to slow down or avoid entering into water collecting cavity 3, and keep off oily membrane of permeating water then allow from hydraulic fluid to separate out or categorised water through in order to enter into water collecting cavity 3, simultaneously, when first oil tank takes place to rock, keep off oily membrane of permeating water also can block or slow down to a certain extent and catchment the water splash in cavity 3, mix with hydraulic fluid once more with the water that avoids splashing.

In addition, referring to fig. 2, 4 and 5, the first oil tank 1 includes a water baffle 5, the water baffle 5 is supported on the mouth edge of the water inlet through a connecting piece and covers the water inlet, the connecting piece enables a water gap to be formed between the water baffle 5 and the mouth edge, thus, water separated out or separated from the hydraulic oil can enter the water collecting cavity 3 through the water gap, the water baffle 5 can slow down disturbance of flowing oil to water in the water collecting cavity 3, and meanwhile, when the first oil tank shakes, the water baffle 5 can block or slow down water in the water collecting cavity 3 from splashing, so as to avoid the splashed water from mixing with the hydraulic oil again.

In addition, the oil-and water-permeable membrane can be connected with the mouth edge through the edge of the membrane, such as a screw connection or a clamping connection. Or, the connecting member fixes and positions the oil-repellent water-permeable membrane, that is, the water baffle 5 is supported on the mouth edge of the water inlet through the connecting member, and at the same time, the connecting member positions the edge of the oil-repellent water-permeable membrane in connection with the mouth edge.

In addition, the connecting piece can have multiple structural style, for example, the connecting piece can be the screw, or can be the buckle, or, can be magnet 6 for the connecting piece, magnet 6 adsorbs on mouthful border, like this, through magnet 6, can fix breakwater 5 conveniently and be convenient for the dismouting. Of course, the number of magnets 6 may be one or more, such as two or three, etc.

In addition, in the first oil tank, the water collecting structure may be disposed at any position, as long as the water separated out or separated from the hydraulic oil in the first oil tank can be collected, for example, in an embodiment, the water collecting structure includes an oil return barrel, the bottom of the oil return barrel may form the water collecting cavity 3, the inside of the oil return barrel is an oil return cavity, the oil return barrel is located in the first oil tank, a barrel opening of the oil return barrel is communicated with an oil return port of the first oil tank, so that the oil return will enter the oil return barrel and be precipitated, because the oil is light and the water is heavy, the oil will float, the water will be deposited in the water collecting cavity 3 at the bottom of the oil return barrel, the oil level in the oil return barrel rises to overflow the barrel opening and then flow into the oil absorption cavity, the water in the water collecting cavity 3 may be discharged through a pipeline, or the oil return barrel may be taken out and poured after being used for a long time.

Alternatively, in another embodiment, referring to fig. 2, 4 and 5, the water collecting structure is provided on the first bottom wall 10 of the first oil tank 1, the water inlet is formed at the lowest position of the first bottom wall 10, and the water collecting chamber 3 is located outside the first oil tank 1. Thus, in the first tank, the oil will float due to the light oil and the heavy water, while the water is deposited and flows into the water collecting chamber 3 outside the first tank 1. At this time, the water collecting chamber 3 may have a drain opening 12 that can be opened and closed, and the water accumulated in the water collecting chamber 3 may be drained through the drain opening 12. Alternatively, the water in the water collecting chamber 3 can be poured out after the chamber wall of the water collecting chamber 3 is detached from the first bottom wall 10.

In the frame assembly of the construction machine, the first oil return cover 7 may not be provided in the first oil tank 1. Or, in an alternative embodiment, referring to fig. 2, the first oil tank 1 includes a first oil return cover 7, the first oil return cover 7 divides the internal space of the first oil tank 1 into an oil return cavity 8 and an oil suction cavity 9, wherein the water collecting structure is disposed on a part of the bottom wall of the first bottom wall 10 located in the oil suction cavity 9; a second oil passing structure 11 for allowing oil liquid in the oil return cavity 8 to pass through and enabling gas to overflow from the oil liquid is formed at the upper part of the first oil return cover 7, and a water passing hole 13 for allowing water deposited in the oil return cavity 8 to pass through so as to flow to the water inlet is formed at the bottom of the first oil return cover 7; therefore, return oil firstly enters the oil return cavity 8 and is deposited in the oil return cavity 8, at the moment, water is deposited at the bottom of the oil return cavity 8 and flows to the water inlet from the water passing port 13 to enter the water collecting cavity 3, when the liquid level of hydraulic oil floating in the oil return cavity 8 rises to the second oil passing structure 11, the hydraulic oil enters the oil suction cavity 9 through the second oil passing structure 11, at the moment, the moisture content of the hydraulic oil entering the oil suction cavity 9 through the second oil passing structure 11 is effectively reduced, meanwhile, bubbles in the hydraulic oil can be overflowed by the second oil passing structure 11, the gas content in the hydraulic oil is effectively reduced, cavitation caused by the bubbles in the hydraulic oil can be relieved or avoided, and the service life of a hydraulic execution device is prolonged.

Additionally, in this first tank, the water collection structure includes various embodiments, such as the above-described scavenge drums. In an alternative embodiment, referring to fig. 4, the water inlet is formed on the first bottom wall 10, and the water collecting structure comprises a water collecting box 14 provided on the outer surface of the first bottom wall 10 and having the water collecting chamber 3, so that the water collecting box 14 can be welded to the first bottom wall 10 or screwed to the protruding end of the first bottom wall 10. In addition, the water collection box 14 may be formed with a drain opening 12 that can be opened and closed. In other alternative embodiments, referring to fig. 5, a portion of the first bottom wall 10 is bent and projected outward to form a projection 15 having the water collection chamber 3. Thus, the protruding portion 15 having the sink groove as the water collection chamber 3 can be formed by only pressing a portion of the first bottom portion 10 outward. In addition, the water outlet 12 which can be opened and closed may be formed on the protruding portion 15, or the water outlet 12 may not be formed on the protruding portion 15, and when the hydraulic oil is replaced, the water in the water collecting chamber 3 may be poured out by pouring the first oil tank, or the water suction pipe may be inserted into the protruding portion 15 to draw out the water in the water collecting chamber 3.

In addition, the second oil passing structure 11 may have various structures, for example, the second oil passing structure 11 may include an oil passing channel with an upper opening, and a plurality of oil stirring columns are formed in the oil passing channel, so that during the process that the hydraulic oil flows along the oil passing channel, the plurality of oil stirring columns change the flow direction of the hydraulic oil, thereby overflowing bubbles in the hydraulic oil. Alternatively, referring to fig. 2 and 3, the second oil passing structure 11 includes a grid structure, the grid structure includes a plurality of spaced strip-shaped holes 16, a plurality of spaced protrusions 17 are respectively formed on two opposite long sides of each strip-shaped hole 16, a concave portion 18 is formed between adjacent protrusions, each protrusion on one long side is opposite to and close to each concave portion on the other long side, the relative and close proximity of the respective projections 17 and recesses 18 thus increases the contact area with the hydraulic fluid, which, when passing through the respective slits 16 and the respective recesses 18, will be agitated by the respective protrusions 17 to overflow the bubbles, and the overflowing bubbles will be adsorbed on the grill, because the contact area is increased, more bubbles can be adsorbed, small bubbles are gathered and enlarged at the grating and are gathered into large bubbles, thereby overcoming the oil resistance and overflowing under the action of self gravity, and effectively reducing the gas content in the hydraulic oil. In addition, when hydraulic oil passes through the grid structure, pressure suddenly becomes little, also is favorable to the bubble in the hydraulic oil to spill over. In addition, the protrusion 17 may have various shapes, for example, one or more of a semicircular shape, a trapezoidal shape, a triangular shape, and a rectangular shape, and correspondingly, the concave portion 18 may be one or more of a semicircular shape, a trapezoidal shape, a triangular shape, and a rectangular shape.

In addition, referring to fig. 2, 4 and 5, a water shielding plate 19 is disposed on a part of the first bottom wall 10 located in the oil suction chamber 9 through a support, a water containing space 20 is formed between the water shielding plate 19 and the part of the bottom wall, and the water containing space 20 is communicated with the water inlet. The support may be a screw, snap-fit structure or magnet. Thus, the water containing space 20 can contain the water deposited in the oil suction chamber 9 and allow the water to enter the water collecting chamber 3, and the water shielding plate 19 can prevent the flowing hydraulic oil from disturbing the water in the water containing space 20 and prevent the oil and the water from being mixed again.

In addition, referring to fig. 6 and 7, the second oil tank 2 includes a second oil return cover 21, the second oil return cover 21 divides the internal space of the second oil tank 2 into an oil return chamber 22, a buffer chamber 23 and an oil suction chamber 24, wherein the first oil passing structure 4 is formed on the second oil return cover 21 for allowing the oil in the oil return chamber 22 to pass through to flow into the buffer chamber 23, and a chamber wall of the buffer chamber 23 is configured such that at least a portion of the oil flowing into the buffer chamber 23 from the oil return chamber 22 is deposited in the buffer chamber 23 and flows into the oil suction chamber 24 after the oil level crosses the chamber wall. In this way, the return oil flows back into the return oil chamber 22 through the return oil pipeline 31 and then flows into the buffer chamber 23 through the first oil passing structure 4, so that the first oil passing structure 4 can overflow gas in the hydraulic oil, the gas content in the hydraulic oil is effectively reduced, the cavitation of a hydraulic actuator is slowed or avoided, and the hydraulic driving force of the hydraulic oil is ensured to avoid the phenomenon of soft legs or arm falling. The hydraulic oil flowing into the buffer chamber 23 can be deposited in the buffer chamber 23, if the hydraulic oil contains moisture, the hydraulic oil can be deposited at the bottom of the buffer chamber 23, and the floating hydraulic oil flows into the oil suction chamber 24 after the oil level crosses the chamber wall, so that the moisture content of the hydraulic oil entering the oil suction chamber 24 is reduced, and the oil suction pipeline 32 can suck the gas and the hydraulic oil with the reduced moisture content from the oil suction chamber 24.

In addition, the second oil return cover 21 may have various forms, for example, may be the oil return bucket described above. Or, referring to fig. 6 to 8, the second oil return cover 21 includes an inclined plate 25 and a vertical side plate 26, the second oil return cover 21 is disposed in the second oil tank 2, the chamber wall of the oil return chamber 22 includes the inclined plate 25 and a part of the bottom wall of the second bottom wall 27 of the second oil tank 2, the chamber wall of the buffer chamber 23 includes the inclined plate 25 and a part of the vertical side plate 26, wherein the first oil passing structure 4 is formed on the inclined plate 25, an oil discharge port 28 is formed on a part of the bottom wall of the second bottom wall 27 of the second oil tank 2 located in the oil return chamber 22, a first oil passing port 29 for allowing the oil liquid in the oil suction chamber 24 to flow into the buffer chamber 23 is formed at the bottom of a part of the vertical side plate 26, and a second oil passing port 30 for allowing the oil liquid in the buffer chamber 23 to flow into the oil return chamber 22 is formed at the bottom of the inclined plate 25. Thus, the inclined plate 25 facilitates the hydraulic fluid to flow into the buffer chamber 23 and then to diverge upwardly along the inclined plate 25 to spill more of the bubbles in the hydraulic fluid. When the oil in the oil return chamber 22 is discharged through the oil discharge port 28, the oil in the oil suction chamber 24 flows into the buffer chamber 23 through the first oil passing port 29, and the oil in the buffer chamber 23 flows into the oil return chamber 22 through the second oil passing port 30 to be discharged from the oil discharge port 28. The first oil passing port 29 and the second oil passing port 30 may have various shapes, for example, may be semicircular.

In addition, referring to fig. 6 and 7, the second bottom wall 27 of the second oil tank 2 includes a wall portion 33 extending upward in the height direction of the second oil tank, wherein the chamber wall of the buffer chamber 23 includes the wall portion 33, wherein the inner dimension of the buffer chamber 23 is enlarged upward in the height direction of the second oil tank. For example, in one embodiment, the wall portion 33 may extend obliquely upward and outward to form the buffer chamber 23 like an inverted triangle with the inclined plate 25. Since the inner size of the buffer chamber 23 is enlarged upward, the oil flowing into the buffer chamber 23 can be accumulated in the buffer chamber 23 for a longer time to overflow the air bubbles and separate out or separate out the moisture.

In addition, the first oil passing structure 4 may have various types, for example, in one type, the first oil passing structure 4 may include an oil passing passage with an upper opening, and a plurality of oil stirring columns are formed in the oil passing passage, so that during the hydraulic oil flowing along the oil passing passage, the plurality of oil stirring columns change the flow direction of the hydraulic oil, thereby overflowing bubbles in the hydraulic oil. Alternatively, referring to fig. 8 and 9, the first oil passing structure 4 comprises a grid structure, the grid structure comprises a plurality of spaced strip-shaped holes 16, a plurality of spaced protrusions 17 are respectively formed on two opposite long sides of each strip-shaped hole 16, and a concave part 18 is formed between the adjacent protrusions. Like this, each arch 17 and concave part 18 can increase the area of contact with hydraulic pressure fluid, when hydraulic pressure fluid passes through each bar hole 16 and each concave part 18, will be stirred by each arch 17 in order to spill over the bubble, and the bubble that spills over will adsorb on the grid, owing to increased area of contact, thereby can adsorb more bubbles, little bubble gathers the grow in grid department, and assemble into the bleb, thereby overcome fluid resistance and self action of gravity and spill over, this gas content in the hydraulic pressure fluid that can effectively reduce. In addition, when hydraulic oil passes through the grid structure, pressure suddenly becomes little, also is favorable to the bubble in the hydraulic oil to spill over. In addition, the protrusion 17 may have various shapes, for example, one or more of a semicircular shape, a trapezoidal shape, a triangular shape, and a rectangular shape, and correspondingly, the concave portion 18 may be one or more of a semicircular shape, a trapezoidal shape, a triangular shape, and a rectangular shape.

In addition, as described above, the first tank may supply hydraulic fluid to a hydraulic actuator system in which moisture is likely to enter (i.e., a hydraulic actuator system in which moisture is likely to enter) while the second tank may supply hydraulic fluid to a hydraulic actuator system in which a demand for hydraulic driving force is high. For example, the first oil tank 1 is a pumping oil tank, and the second oil tank 2 is an arm support oil tank.

Furthermore, the invention provides an engineering machine comprising an engineering machine frame assembly as described in any of the above.

The engineering machine may be an excavator, or may be a concrete pump truck. For example, in a concrete pump truck, the first oil tank 1 pumps oil, and the second oil tank 2 is an arm support oil tank. For example, in one embodiment, in the working process of the pumping oil tank, moisture in the concrete cylinder cooling water tank enters the pumping hydraulic system due to the main cylinder loop, so that the moisture content in hydraulic oil is high, however, moisture in oil can be effectively removed through the first oil tank 1, so that oil emulsification is avoided, and meanwhile, bubbles in the oil can be removed through the first oil tank 1. Therefore, the pumping oil tank can realize the functions of reversing swing cylinder driving, cleaning oil cylinder, stirring driving motor, concrete conveying main cylinder driving and the like. And the functions that the second oil tank 2 can realize include: the control method comprises the steps of boom rotation control, amplitude variation control of each section of boom cylinder, vibration reduction control of part of the boom, a support leg telescopic cylinder of a front support leg, a front support leg vertical cylinder, a swinging cylinder of a rear swinging leg, a vertical cylinder of the rear swinging leg and the like, and for example, the phenomenon that a soft leg occurs on the support leg or the boom falls off can be avoided. Therefore, through the first oil tank and the second oil tank, the amount of the polluted oil is reduced, the oil replacing frequency is prolonged, and the use cost of the oil is relatively low.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the present invention, it is possible to carry out a plurality of simple variants of the technical solution of the present invention, for example including each specific technical feature combined in any suitable way. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (14)

1. The utility model provides an engineering machine tool frame assembly, its characterized in that is in including support body and setting first oil tank (1) and second oil tank (2) on the support body, first oil tank (1) with second oil tank (2) mutual independence, wherein, first oil tank (1) is including being arranged in carrying out the water collection structure that collects to the water that precipitates or separates out from fluid, water collection structure is including catchmenting chamber (3) that have the water inlet, be provided with in second oil tank (2) and allow fluid to pass through with the first oily structure (4) of crossing that overflows the gas in the fluid.

2. The frame assembly of engineering machinery according to claim 1, wherein the water inlet is covered with an oil-blocking and water-permeable membrane.

3. Work machine frame assembly according to claim 2, characterized in that the first tank (1) comprises a water deflector (5), which water deflector (5) is supported on and covers the water inlet opening edge by means of a connection piece, which connection piece provides a water passage gap between the water deflector (5) and the opening edge.

4. The engineering machinery frame assembly according to claim 3, wherein the connecting piece is used for fixing and positioning the oil-water-permeable membrane, and/or the connecting piece is a magnet (6) adsorbed on the opening edge.

5. A work machine frame assembly according to any of claims 1-4, characterized in that the water collecting structure is arranged on a first bottom wall (10) of the first oil tank (1), the water inlet is formed at the lowest position of the first bottom wall (10), and the water collecting chamber (3) is located outside the first oil tank (1).

6. The work machine frame assembly of claim 5, wherein the work machine frame assembly comprises at least one of:

the first method is as follows: the first oil tank (1) comprises a first oil return cover (7), the first oil return cover (7) divides the inner space of the first oil tank (1) into an oil return cavity (8) and an oil suction cavity (9), wherein the water collecting structure is arranged on part of the bottom wall of the first bottom wall (10) which is positioned in the oil suction cavity (9); a second oil passing structure (11) for allowing oil liquid in the oil return cavity (8) to pass through and enabling gas to overflow from the oil liquid is formed at the upper part of the first oil return cover (7), and a water passing port (13) for allowing water deposited in the oil return cavity (8) to pass through so as to flow to the water inlet is formed at the bottom of the first oil return cover (7);

the second method comprises the following steps: the water inlet is formed on the first bottom wall (10), the water collecting structure comprises a water collecting box (14) which is arranged on the outer surface of the first bottom wall (10) and is provided with the water collecting cavity (3), or a part of the first bottom wall (10) is bent and protruded outwards to form a protruding part (15) which is provided with the water collecting cavity (3).

7. The frame assembly of the engineering machinery, according to claim 6, is characterized in that the frame assembly of the engineering machinery comprises a first oil passing structure (11) and a second oil passing structure (11), wherein the first oil passing structure comprises a grid structure, the grid structure comprises a plurality of spaced strip-shaped holes (16), a plurality of spaced bulges (17) are respectively formed on two opposite long sides of each strip-shaped hole (16), concave parts (18) are formed between every two adjacent bulges, and each bulge on one long side is opposite to and close to each concave part on the other long side;

and/or the presence of a gas in the gas,

a water shielding plate (19) is arranged on part of the bottom wall of the first bottom wall (10) which is positioned in the oil suction cavity (9) through a support piece, a water containing space (20) is formed between the water shielding plate (19) and the part of the bottom wall, and the water containing space (20) is communicated with the water inlet.

8. The engineering machinery frame assembly according to claim 1, wherein the second oil tank (2) comprises a second oil return cover (21), the second oil return cover (21) divides the inner space of the second oil tank (2) into an oil return chamber (22), a buffer chamber (23) and an oil suction chamber (24), wherein the first oil passing structure (4) is formed on the second oil return cover (21) and used for allowing oil in the oil return chamber (22) to pass through so as to flow into the buffer chamber (23), and the chamber wall of the buffer chamber (23) is configured such that at least a part of oil flowing into the buffer chamber (23) from the oil return chamber (22) is deposited in the buffer chamber (23) and flows into the oil suction chamber (24) after the oil level crosses the chamber wall.

9. The work machine frame assembly according to claim 8, wherein the second return oil cover (21) comprises an inclined plate (25) and a vertical side plate (26), the chamber wall of the return oil chamber (22) comprises the inclined plate (25) and a part of the bottom wall of the second bottom wall (27) of the second oil tank (2), and the chamber wall of the buffer chamber (23) comprises the inclined plate (25) and a part of the vertical side plate (26), wherein,

first oily structure (4) of crossing form on hang plate (25), be located of second diapire (27) of second oil tank (2) be formed with oil drain (28) on the partly diapire in oil return chamber (22), the bottom of the partly of vertical curb plate (26) is formed with the permission fluid in oil absorption chamber (24) flows into first hydraulic fluid port (29) of crossing in surge chamber (23), the bottom of hang plate (25) is formed with the permission fluid in surge chamber (23) flows into hydraulic fluid port (30) are crossed to the second in oil return chamber (22).

10. The work machine frame assembly according to claim 8, characterized in that the second bottom wall (27) of the second oil tank (2) comprises a wall portion (33) extending upwards in the height direction of the second oil tank, wherein the chamber wall of the damping chamber (23) comprises said wall portion (33), wherein the inner dimension of the damping chamber (23) is enlarged upwards in the height direction of the second oil tank.

11. The engineering machinery frame assembly according to claim 1, wherein the first oil passing structure (4) comprises a grid structure, the grid structure comprises a plurality of spaced strip-shaped holes (16), a plurality of spaced bulges (17) are respectively formed on two opposite long sides of each strip-shaped hole (16), and a concave part (18) is formed between every two adjacent bulges.

12. The engineering machine frame assembly according to claim 1, wherein the first oil tank (1) is a pumping oil tank and the second oil tank (2) is a boom oil tank;

and/or the presence of a gas in the gas,

at least one of the first tank (1) and the second tank (2) is independent from each other.

13. A work machine, characterized in that the work machine comprises a work machine frame assembly according to any of claims 1-12.

14. The working machine according to claim 13, characterized in that the working machine is a concrete pump truck.

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