Oil tank cover and oil tank of oil pump station for permanent magnet automatic hydraulic machine

Abstract

The utility model discloses an oil tank cover of an oil pump station for a permanent magnet automatic hydraulic machine and an oil tank, relates to the technical field of magnet production, and can solve the problem that at present, a return pipe is arranged on the side face of the oil tank, and liquid oil with impact force is prone to overflowing when flowing back. Comprising an oil tank cap body, an oil inlet and at least one oil return opening are formed in the oil tank cap body, and an oil return connector used for being connected with an oil return pipe is arranged at the oil return opening.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic tile production, in particular to an oil tank cover and an oil tank of an oil pump station for a permanent magnet automatic hydraulic press. Background Art

[0002] In the production process of wet magnet die-casting, after the amount of material delivered by the feeding system to the die-casting mold reaches the standard, it is necessary to use a permanent magnet automatic hydraulic press in conjunction with the die-casting mold to die-cast the material. During the die-casting process, the two opposing cylinders of the permanent magnet automatic hydraulic press are required to drive the die-casting mold to die-cast the material.

[0003] At present, permanent magnet automatic hydraulic presses usually require an external oil pump station to transport hydraulic oil to their telescopic cylinders to provide sufficient hydraulic pressure for the telescopic cylinders. In traditional oil pump station tanks, the return oil pipe is usually set on the side of the tank. However, since the hydraulic oil usually carries a certain pressure during the return process, hydraulic oil overflow and leakage often occur.

[0004] In addition, since the two opposing telescopic cylinders of the permanent magnet automatic hydraulic press are supplied with oil by the oil pump of the oil pump station, the hydraulic oil has a complex route and metal debris is more likely to appear in the hydraulic oil. The oil tank of a traditional oil pump station usually has only one containing area, and the metal debris in the hydraulic oil is often in a disturbed state. During the process of the oil pump pumping oil out, the metal debris is very likely to re-enter the oil pump, and it is also easy to cause damage to the oil pump impeller.

[0005] Based on the above background, the inventor has designed an oil tank cover and oil tank for an oil pump station for a permanent magnet automatic hydraulic press, and thus proposed the present application. Utility Model Content

[0006] The purpose of this application is to provide an oil tank cover and an oil tank of an oil pump station for a permanent magnet automatic hydraulic press, to solve the problems of the prior art. To solve at least one of the above problems, the utility model adopts the following solutions:

[0007] On the one hand, the present application provides an oil tank cover for an oil pump station for a permanent magnet automatic hydraulic press, comprising an oil tank cover body, on which an oil inlet and at least one oil return port are provided, and an oil return joint for connecting an oil return pipe is provided at the oil return port.

[0008] Optionally, it also includes an oil receiving pan for receiving the overflowed liquid oil, wherein an oil receiving groove is provided in the oil receiving pan, and the oil receiving pan is fixedly connected to the bottom of the fuel tank cover body;

[0009] A waste oil pipe connected to an external waste oil barrel is arranged at the bottom of the oil receiving pan.

[0010] Optionally, there are three oil return ports and three oil return joints disposed at the oil return ports.

[0011] Optionally, a filter or a filter flange for mounting a filter is provided at the oil inlet.

[0012] On the other hand, the present application provides an oil tank of an oil pump station for a permanent magnetic automatic hydraulic press, comprising any of the above. An oil tank cover for an oil pump station for a permanent magnetic automatic hydraulic press, and a tank body having an oil storage tank and used in conjunction with the oil tank cover, wherein:

[0013] The tank body is provided with a first partition plate and a second partition plate for dividing the oil storage tank into a reflux tank, a sedimentation tank and an oil pump tank, and the reflux tank, the sedimentation tank and the oil pump tank are connected in sequence;

[0014] The oil return port and the oil inlet are both arranged directly above the reflux groove;

[0015] The waste oil pipe is located outside the reflux tank.

[0016] Optionally, the first partition and the second partition are both arranged vertically, and the first partition and the second partition are perpendicular to each other;

[0017] The first partition plate is provided with an oil-passing port, and the second partition plate is provided with a plurality of oil-passing holes;

[0018] The flow path of the liquid oil returning from the oil return pipe is: return port, return groove, oil pass port, sedimentation groove, oil pass hole, pump oil groove. The liquid oil returning from the oil return pipe flows into the pump oil groove through two L-shaped corners.

[0019] Optionally, the bottoms of the reflux tank, the sedimentation tank and the pump oil tank are all provided with oil drain joints;

[0020] The horizontal height of the oil drain joint is lower than the height of the oil outlet and the oil hole.

[0021] Optionally, a first overflow notch is provided at the top of the first partition, and a second overflow notch is provided at the top of the second partition, and a bottom height of the first overflow notch is lower than a bottom height of the second overflow notch.

[0022] Optionally, the side wall of the oil pump groove is further provided with an oil pump interface for connecting to an oil pump inlet, and at least two oil pump interfaces are provided;

[0023] Metal debris filters are installed on the pump oil interfaces.

[0024] Optionally, the volumes of the reflux tank and the pump oil tank are both larger than the volume of the sedimentation tank.

[0025] Beneficial effects of the utility model:

[0026] 1. The present invention arranges the return port, the oil inlet, and the oil return joint on the oil tank cover, so that when liquid oil with a certain pressure flows back from the oil return pipe, the return direction is from top to bottom. Compared with the prior art in which the oil return pipe is installed on the side wall of the oil tank, the liquid oil is less likely to overflow, and the number of liquid oil overflows can be reduced.

[0027] 2. The present application sets an oil receiving pan, and the waste oil pipe on the oil receiving pan is set on the outside of the reflux groove, so that even if the liquid oil in the oil tank overflows, the overflowed liquid oil can be collected by the oil receiving pan, so that the overflowed waste oil can be quickly discharged to the waste oil barrel through the waste oil pipe after a short distance.

[0028] 3. The present application sets a first partition and a second partition, and utilizes the first partition and the second partition to separate the oil storage tank of the tank body into three areas: a dynamic oil return area, a static buffer area, and a static oil distribution area. This can prevent the oil return action and oil discharge action of the oil pump station from disturbing the liquid oil in the static buffer area, thereby allowing the metal debris in the liquid oil to sink to the bottom naturally, which can effectively solve the current problem of metal debris flowing with the liquid oil causing damage to the oil pump.

[0029] Fourth, after the liquid oil of the present application flows out of the oil return pipe, its direction after rushing out of the oil return pipe is first from top to bottom, and has a certain impact force. After entering the reflux groove, it flows horizontally through the oil port and then flows into the sedimentation groove, which is the first L-shaped corner route. Then the liquid oil in the sedimentation groove flows into the oil distribution groove, which is the second L-shaped corner route. The liquid oil in the oil return pipe flows from top to bottom, which can minimize its impact force. On this basis, the oil port between the reflux groove and the sedimentation groove can be buffered again, so that part of the liquid oil can rush into the sedimentation groove, reducing the risk of liquid oil overflow. At the same time, after the liquid oil enters the reflux groove, it flows into the second L-shaped corner route of the oil distribution groove, so that after the liquid oil flows from the dynamic oil return area to the static buffer area, the liquid oil will not flow directly into the static oil distribution area, but there is a truncation and deceleration process, which is conducive to the metal debris sinking to the bottom and avoids the metal debris directly flowing into the static oil distribution area with the liquid oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the top view structure of Example 1 of the present application.

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of Example 2 of the present application.

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the box tank body in Example 2 of the present application.

[0033] Explanation of the reference numerals: 1-tank cover body, 11-oil return port, 111-oil return joint, 12-oil inlet, 121-filter flange, 2-oil receiving pan, 21-waste oil pipe, 3-tank body, 301-oil drain joint, 302-observation window, 303-oil pump interface, 31-first partition plate, 311-oil through port, 312-first overflow notch, 32-second partition plate, 321-oil through hole, 322-second overflow recess, 33-reflux groove, 34-sedimentation groove, 35-oil pump groove. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0035] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Embodiment 1:

[0039] like Figure 1 As shown, this embodiment provides an oil tank cover of an oil pump station for a permanent magnet automatic hydraulic press, including an oil tank cover body 1, on which an oil inlet 12 and at least one oil return port 11 are provided, and the oil return port 11 is provided with an oil return connector 111 for connecting an oil return pipe.

[0040] In this embodiment, the return port, the oil inlet 12, and the oil return joint 111 are all arranged on the oil tank cover, so that when the liquid oil with a certain pressure flows back from the oil return pipe, the return direction of the oil is from top to bottom. Compared with the prior art in which the oil return pipe is installed on the side wall of the oil tank, the liquid oil is less likely to overflow, and the number of liquid oil overflows can be reduced.

[0041] Specifically, in this embodiment, an oil receiving pan 2 for receiving the overflowed liquid oil is also included, and an oil receiving groove is provided in the oil receiving pan 2. The oil receiving pan 2 is fixedly connected to the bottom of the fuel tank cover body 1;

[0042] The bottom of the oil receiving pan 2 is provided with a waste oil pipe 21 connected to an external waste oil barrel. By providing the oil receiving pan 2, even if the liquid oil in the oil tank overflows, the overflowed liquid oil can be collected by the oil receiving pan 2, so that the overflowed waste oil can be discharged to the waste oil barrel through the waste oil pipe 21, thereby preventing the waste oil from overflowing to other locations.

[0043] Specifically, in this embodiment, the oil return port 11 and the oil return joint 111 provided at the oil return port 11 are both provided in three numbers. In this embodiment, three oil return ports 11 are provided, and three oil return pipes can be connected. In some embodiments, four, five, or other number of oil return ports 11 can be provided, and can be provided as required.

[0044] Specifically, in this embodiment, a filter or a filter flange 121 for installing a filter is provided at the oil inlet 12. In this embodiment, the filter provided at the oil inlet 12 or the filter connected by the filter flange 121 is an air filter, which is a prior art and will not be described in detail.

[0045] Embodiment 2:

[0046] On the basis of the above-mentioned embodiment 1, this embodiment provides an oil tank of an oil pump station for a permanent magnetic automatic hydraulic machine, including any of the above-mentioned. An oil tank cover of an oil pump station for a permanent magnetic automatic hydraulic machine, and a tank body 3 having an oil storage tank and used in conjunction with the oil tank cover, wherein:

[0047] The tank body 3 is provided with a first partition plate 31 and a second partition plate 32 for dividing the oil storage tank into a reflux tank 33, a sedimentation tank 34 and an oil pump tank 35. The reflux tank 33, the sedimentation tank 34 and the oil pump tank 35 are connected in sequence.

[0048] The oil return port 11 and the oil inlet 12 are both arranged directly above the reflux groove 33;

[0049] The waste oil pipe 21 is located outside the reflux groove 33 .

[0050] In this embodiment, the first partition plate 31 and the second partition plate 32 are arranged to divide the oil storage tank of the tank body 3 into three areas: a dynamic oil return area, a static buffer area, and a static oil distribution area. This can prevent the oil return action and oil discharge action of the oil pump station from disturbing the liquid oil in the static buffer area, so that the metal debris in the liquid oil can sink to the bottom naturally, which can effectively solve the current problem of metal debris flowing with the liquid oil and causing damage to the oil pump.

[0051] At the same time, the waste oil pipe 21 is located outside the reflux groove 33, so that even if the liquid oil in the return oil pipe overflows after rushing into the reflux groove 33, the waste oil can be discharged into the waste oil barrel through a shorter distance, thereby avoiding the accumulation of overflowed waste oil in the oil receiving pan 2.

[0052] Specifically, Figure 2 and Figure 3 As shown, the first partition plate 31 and the second partition plate 32 are both arranged vertically, and the first partition plate 31 and the second partition plate 32 are perpendicular to each other;

[0053] The first partition plate 31 is provided with an oil port 311 , and the second partition plate 32 is provided with a plurality of oil holes 321 ;

[0054] The flow path of the liquid oil returning from the oil return pipe is: the return port, the return groove 33, the oil port 311, the sedimentation groove 34, the oil hole 321, and the pump oil groove 35. The liquid oil returning from the oil return pipe flows into the pump oil groove 35 through two L-shaped corners.

[0055] After the liquid oil in the present embodiment flows out of the oil return pipe, its direction after rushing out of the oil return pipe is first from top to bottom with a certain impact force. After entering the reflux groove 33, it flows horizontally through the oil port 311 and then flows into the sedimentation groove 34, which is the first L-shaped corner route. Subsequently, the liquid oil in the sedimentation groove 34 flows into the oil distribution groove again, which is the second L-shaped corner route. The liquid oil in the oil return pipe flows from top to bottom, which can minimize its impact force. On this basis, the oil port 311 between the reflux groove 33 and the sedimentation groove 34 can be buffered again, so that part of the liquid oil can rush into the sedimentation groove 34, reducing the risk of liquid oil overflow. At the same time, after the liquid oil enters the reflux groove 33, it flows into the second L-shaped corner route of the oil distribution groove, so that after the liquid oil flows from the dynamic oil return area to the static buffer area, the liquid oil will not flow directly into the static oil distribution area, but there is a truncation and deceleration process, which is conducive to the sinking of metal debris and avoids the metal debris directly flowing into the static oil distribution area with the liquid oil.

[0056] Specifically, in this embodiment, the bottoms of the reflux tank 33, the sedimentation tank 34 and the pump oil tank 35 are all provided with oil drain joints 301;

[0057] The horizontal height of the oil drain joint 301 is lower than the height of the oil through port 311 and the oil through hole 321. By setting the oil drain joint 301, it is convenient to discharge the liquid oil during the subsequent oil pump station overhaul and maintenance.

[0058] Specifically, in this embodiment, a first overflow notch 312 is provided on the top of the first partition 31, and a second overflow notch is provided on the top of the second partition 32, and the bottom height of the first overflow notch 312 is lower than the bottom height of the second overflow notch. By providing the first overflow notch 312 and the second overflow notch, and the bottom height of the first overflow notch 312 is lower than the bottom height of the second overflow notch, when there is sufficient oil in the oil storage tank, liquid oil is prevented from flowing directly from the overflow tank from the dynamic oil return area to the static oil distribution area, but flows from the static oil distribution area to the static buffer area, and then flows into the dynamic oil return area.

[0059] Specifically, in this embodiment, the side wall of the oil pump groove 35 is further provided with an oil pump interface 303 for connecting to the oil pump inlet 12, and at least two oil pump interfaces 303 are provided;

[0060] Metal debris filters are installed on the oil pump interfaces 303. By providing two oil pump interfaces 303, two telescopic oil cylinders of the permanent magnet automatic hydraulic press can be respectively equipped with corresponding oil pumps to complete the dislocated top pressure.

[0061] Specifically, in this embodiment, the volumes of the reflux groove 33 and the pump oil groove 35 are both greater than the volume of the sedimentation groove 34 .

[0062] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An oil tank cover for an oil pump station for a permanent magnet automatic hydraulic press, comprising an oil tank cover body (1), characterized in that: The oil tank cover body (1) is provided with an oil inlet (12) and at least one oil return port (11), and the oil return port (11) is provided with an oil return joint (111) for connecting to an oil return pipe; It also includes an oil receiving pan (2) for receiving the overflowed liquid oil, the oil receiving pan (2) being provided with an oil receiving groove, and the oil receiving pan (2) being fixedly connected to the bottom of the oil tank cover body (1); A waste oil pipe (21) connected to an external waste oil barrel is provided at the bottom of the oil receiving pan (2).

2. The oil tank cover of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 1 is characterized in that: The oil return port (11) and the oil return joints (111) provided at the oil return port (11) are both provided in three numbers.

3. The oil tank cover of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 1 is characterized in that: The oil inlet (12) is provided with a filter or a filter flange (121) for mounting the filter.

4. An oil tank for an oil pump station for a permanent magnet automatic hydraulic press, characterized in that: A tank cover of an oil pump station for a permanent magnetic automatic hydraulic press, and a tank body (3) having an oil storage tank and used in cooperation with the tank cover, comprising any one of claims 1 to 3, wherein: A first partition plate (31) and a second partition plate (32) are provided in the tank body (3) for dividing the oil storage tank into a reflux tank (33), a sedimentation tank (34) and an oil pump tank (35); the reflux tank (33), the sedimentation tank (34) and the oil pump tank (35) are connected in sequence; The oil return port (11) and the oil inlet port (12) are both arranged directly above the reflux groove (33); The waste oil pipe (21) is located outside the reflux tank (33).

5. The oil tank of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 4 is characterized in that: The first partition plate (31) and the second partition plate (32) are both arranged vertically, and the first partition plate (31) and the second partition plate (32) are perpendicular to each other; The first partition plate (31) is provided with an oil passage port (311), and the second partition plate (32) is provided with a plurality of oil passage holes (321); The liquid oil returning from the oil return pipe flows through a path including a return port, a return groove (33), an oil passage port (311), a sedimentation groove (34), an oil passage hole (321), and an oil pump groove (35). The liquid oil returning from the oil return pipe flows into the oil pump groove (35) through two L-shaped turns.

6. The oil tank of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 5, characterized in that: The bottoms of the reflux tank (33), the sedimentation tank (34) and the pump oil tank (35) are all provided with oil drain joints (301); The horizontal height of the oil drain joint (301) is lower than the height of the oil passage opening (311) and the oil passage hole (321).

7. The oil tank of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 4, characterized in that: A first overflow notch (312) is provided at the top of the first partition plate (31), and a second overflow notch is provided at the top of the second partition plate (32); the bottom height of the first overflow notch (312) is lower than the bottom height of the second overflow notch.

8. The oil tank of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 4, characterized in that: An oil pump interface (303) for connecting to an oil pump inlet (12) is also provided on the side wall of the oil pump groove (35), and at least two oil pump interfaces (303) are provided; A metal debris filter is installed on each of the oil pump interfaces (303).

9. The oil tank of the oil pump station for a permanent magnetic automatic hydraulic press according to claim 4, characterized in that: The volumes of the reflux tank (33) and the pump oil tank (35) are both greater than the volume of the sedimentation tank (34).

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