Hydraulic power unit convenient to disassemble and maintain

Abstract

The utility model discloses a hydraulic power unit convenient to disassemble and maintain, and relates to the technical field of washing machine drum damping parts, the key points of the technical scheme are that the hydraulic power unit comprises an oil tank and an oil pump, and the oil tank is detachably connected with the oil pump; wherein the oil tank is provided with a concave curved surface end head, and the curved surface end head is provided with an oil outlet end head which is of an integrated structure with the oil tank. A thread type limiting and clamping structure is adopted between the oil tank and the oil pump of the hydraulic power unit, the whole disassembly and assembly process can be completed manually without the help of external tools, meanwhile, through progressive transmission of threads, an elastic blocking piece in the oil tank is pushed through an ejection piece in an oil inlet port of the oil pump, circulation of oil to the oil pump is achieved, and the oil pump is prevented from being damaged. Connection of the oil tank and the oil pump and circulation control of oil liquid are effectively integrated into a whole, the ejector rod and the circular net are combined through the ejector piece, and the circulating oil liquid can be filtered while the elastic blocking piece is ejected out.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, and more particularly to a hydraulic power unit which is easy to disassemble and maintain. Background Art

[0002] The hydraulic power unit is used as an oil supply device. It is connected to several hydraulic cylinders through an external piping system to control the movement of multiple groups of valves. The oil tank, oil pump and accumulator form an independent and closed power oil source system.

[0003] The oil tank and oil pump are the core components of the hydraulic power unit. The oil tank is installed on the oil pump. Through the PLC to open and close the electronic valve, the oil in the oil tank will flow into the oil pump, and then the oil pump will press the oil into the hydraulic equipment. Because the oil tank and the oil pump are inseparable connections, the oil tank is mostly installed on the oil inlet end of the oil pump. At the same time, in order to ensure the sealing, the two need to be fixed with screws and other fixed components, thereby effectively reducing the impact of vibration on the connection between the oil tank and the oil pump during the operation of the entire hydraulic power unit.

[0004] During the long-term use of the fuel tank and the fuel pump, when the fuel pump fails or the oil needs to be replaced, the fuel tank and the fuel pump need to be disassembled for inspection or replacement. Since the traditional fuel tank and the fuel pump are fixed by fixed components, the relevant disassembly and assembly tools are required when disassembling the fuel tank, and the process is relatively cumbersome. At the same time, during the manual removal of the fuel tank or the fuel pump, the oil in the fuel tank will overflow too much, causing a certain impact on the surrounding environment.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a hydraulic power unit that is easy to disassemble and maintain. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a hydraulic power unit that is easy to disassemble and maintain.

[0007] and a tube connecting the discharging opening of the pump with the help of the crank case, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said former

[0008] Preferably, the second connecting end head and the rotating disk are an integrated structure, the second connecting end head is arranged at the center of the bottom side end surface of the rotating disk and passes through the rotating disk to communicate with the interior of the oil tank, and the outer wall of the second connecting end head is provided with a thread and a locking hole, and the locking hole is provided with two groups.

[0009] Preferably, the elastic blocking member includes a first spring and a blocking block, the blocking block is clamped to the curved end and the top and bottom of the blocking block are circular raised structures, one end of the first spring is connected to the blocking block, and the other end is connected to the center position of the top surface inside the oil tank through a fixed plate.

[0010] Preferably, the interface assembly includes a first connecting end and an oil inlet port, the first connecting end is annular in structure and is fixed to the top of the oil pump, the oil inlet port is arranged inside the first connecting end and is connected to the inside of the oil pump, and a gap is provided between the first connecting end and the oil inlet port, the size of the gap is the same as the thickness of the second connecting end, and a thread groove matching the thread and a through hole corresponding to the position of the two groups of locking holes are provided on the inner wall of the first connecting end.

[0011] Preferably, the elastic fixing part includes a circular cover plate, a strip tube rod and an insertion rod, the strip tube rod is fixed at the through hole of the first connecting end, the insertion rod is located inside the strip tube rod, one end of the insertion rod is engaged with the locking hole through the through hole, and the other end of the insertion rod is fixed to the circular cover plate located outside the strip tube rod, an arc-shaped handle is provided on the circular cover plate, and an elastic connecting part is provided on the rod body of the insertion rod located inside the strip tube rod.

[0012] Preferably, the elastic connecting member includes a limit plate, a second spring and a limit ring. The limit plate is located at one end of the insertion rod and is an integrated structure with the insertion rod. The limit ring is arranged inside the strip-shaped tube rod at one end of the circular cover plate. The second spring is connected between the limit plate and the limit ring.

[0013] Preferably, the ejection member includes a circular net, a connecting seat is provided at the center of the circular net, a push rod of an integrated structure is provided on the top side of the connecting seat, a pushing seat for ejecting the blocking block is provided on the push rod, a conical cover is provided at the bottom of the circular net to wrap the circular net, an electronic valve connected to the inside of the oil pump is connected at the conical end of the conical cover, and the electronic valve is connected to the valve line connection port through a circuit.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. A threaded limit clamping structure is adopted between the oil tank and the oil pump of the hydraulic power unit of the utility model. When the oil tank is connected to the oil pump, the progressive transmission of the thread will push the elastic blocking member in the oil tank through the ejection member in the oil inlet port of the oil pump, thereby realizing the circulation of oil to the oil pump. In this process, the connection between the oil tank and the oil pump and the circulation control of the oil are effectively integrated into one, so that when the oil tank is connected to the oil pump, there will be no overflow of oil. At the same time, when the oil tank is separated from the oil pump, there will be no large amount of oil overflow. Moreover, the elastic blocking member will seal the oil tank after the oil tank is separated from the oil pump, which provides a certain convenience for carrying the oil tank.

[0016] 2. The threaded limit clamping structure between the oil tank and the oil pump of the hydraulic power unit of the utility model will be limited and locked by the elastic fixing piece on the first connecting end of the oil pump after the thread is locked. When the two are removed, the limit of the elastic fixing piece can be manually released, and the thread locking can be released by rotating the disk, so that the oil tank and the oil pump can be removed. The entire disassembly and assembly process can be completed manually without the help of external tools, effectively simplifying the cumbersome process of disassembly and assembly of traditional screw fixings.

[0017] 3. The ejector in the first connecting end of the oil pump of the hydraulic power unit of the utility model combines the ejector rod with the circular net, which can not only eject the elastic blocking member but also filter the circulating oil, thereby improving the quality of the oil entering the oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1This is the overall structural diagram of the pressure power unit of the utility model;

[0020] Figure 2 This is an overall cross-sectional view of the fuel tank of the utility model;

[0021] Figure 3 This is a structural diagram of the bottom of the fuel tank of the utility model;

[0022] Figure 4 This is the structural diagram of the oil pump connection end of the utility model;

[0023] Figure 5 This is the overall structural diagram of the ejector of the utility model;

[0024] Figure 6 This is the bottom structure diagram of the ejector of the utility model;

[0025] Figure 7 This is an overall disassembly diagram of the elastic fixing part of the utility model.

[0026] 1. Oil tank; 101. First spring; 102. Block; 2. Oil pump; 201. First connecting terminal; 202. Oil inlet port; 203. Threaded groove; 204. Valve line connection port; 3. Curved terminal; 4. Rotating plate; 401. Second connecting terminal; 402. Thread; 403. Locking hole; 5. Elastic fixing part; 501. Circular cover; 502. Bar rod; 503. Insert rod; 504. Limiting plate; 505. Second spring; 506. Limiting ring; 6. Ejector; 601. Circular net; 602. Connecting seat; 603. Ejector rod; 604. Pushing seat; 605. Conical cover; 606. Electronic valve. DETAILED DESCRIPTION

[0027] like Figure 1-7 As shown, the utility model provides a hydraulic power unit that is easy to disassemble and maintain, including an oil tank 1 and an oil pump 2. The oil tank 1 and the oil pump 2 are detachably connected. The specific overview of the connection between the oil tank 1 and the oil pump 2 is as follows: the oil tank 1 is provided with a concave curved end head 3, the curved end head 3 is provided with an oil outlet end head that is an integral structure with the oil tank 1, the oil outlet end head is provided with a rotating disk 4 for disassembling and assembling the oil tank 1 and the oil pump 2, the bottom side end surface of the rotating disk 4 is provided with a second connecting end head 401 connected to the oil pump 2, and the inside of the oil tank 1 is provided with an elastic blocking member for controlling the inflow and outflow of oil in the oil tank 1;

[0028] Specifically, the elastic blocking member can block the oil port of the oil tank 1 through the elastic member, so that when the disassembled oil tank 1 is carried, oil splashing will not occur. During the installation process, it can cooperate with the ejector 6 to realize opening and closing to allow the oil to circulate;

[0029] The oil pump 2 has an interface assembly connected to the second connection terminal 401 at the top. An ejector 6 for controlling the ejection of the elastic blocking member is provided within the interface assembly. The outer wall of the interface assembly is provided with a valve line connection port 204 and two sets of elastic fixing members 5 for limiting and fixing the second connection terminal 401 and the interface assembly after connection.

[0030] Specifically, the oil pump 2 and the oil tank 1 are connected by a threaded structure in combination with a limiter of an elastic element. The entire process can be manually operated, simplifying the tediousness caused by screw disassembly and assembly. At the same time, the ejector 6 not only realizes the ejection function of the elastic blocking member, but also has the effect of filtering the oil, preventing impurities or particles in the oil from entering the oil pump 2 and affecting the overall operation of the hydraulic equipment.

[0031] In summary, the disassembly and maintenance of the hydraulic power unit in this case only involves the disassembly and maintenance of the hardware part, including the disassembly and assembly connection structure of the oil tank 1 and the oil pump 2, and does not involve the main control unit part, such as the PLC control unit. The disassembly and assembly of the hydraulic power unit specifically includes the following: when the oil tank 1 is installed on the oil pump 2, the second connecting end 401 on the bottom side of the rotating disk 4 is embedded in the gap between the first connecting end 201 on the top side of the oil pump 2 and the oil inlet port 202, and the rotating disk 4 is rotated to lock it in the gap using the thread 402. After locking, the insertion rod 503 of the elastic fixing member 5 will automatically embed into the locking hole 403 on the second connecting end 401, thereby achieving the locking fixation of the oil tank 1 on the oil pump 2. When disassembling, the circular cover plate 501 with the arc-shaped handle is manually pulled to drive the insertion rod 503 to separate from the locking hole 403, and the oil tank 1 and the oil pump 2 can be separated by rotating the rotating disk 4;

[0032] It should be noted that after the oil tank 1 and the oil pump 2 are locked, the oil in the oil tank 1 will be filtered through the circular mesh 601 in the oil inlet port 202 of the first connecting end 201. If there are impurities or particles in the oil, they will be retained on the mesh, thereby improving the quality of the oil.

[0033] In order to achieve a simplified installation of the oil tank 1 on the oil pump 2, as shown in FIG. Figure 2 、 Figure 3 As shown, the specific description is as follows: the second connecting end 401 and the rotating disk 4 are integrated into a structure. The second connecting end 401 is arranged at the center of the bottom end surface of the rotating disk 4 and passes through the rotating disk 4 to communicate with the interior of the oil tank 1. The outer wall of the second connecting end 401 is provided with a thread 402 and a locking hole 403, and there are two groups of locking holes 403;

[0034] According to the above content, it is further explained that the rotating disk 4 is the core component for the disassembly and assembly operation between the fuel tank 1 and the fuel pump 2. A tooth mark structure is provided on the outer wall of the rotating disk 4 to increase the friction between the hand and the rotating disk 4. After the second connecting end 401 is locked by the thread 402, the entire second connecting end 401 is limited and fixed by two sets of limit locking structures to prevent reversal due to external force.

[0035] In order to achieve the sealing effect of the internal oil in the oil tank 1 during the disassembly and assembly process, Figure 2 、 Figure 4 As shown, the elastic blocking member includes a first spring 101 and a blocking block 102. The blocking block 102 is clamped to the curved end 3 and the top and bottom of the blocking block 102 are circular convex structures. One end of the first spring 101 is connected to the blocking block 102, and the other end is connected to the center position of the top surface inside the fuel tank 1 through a fixed plate.

[0036] As for the specific description of the elastic blocking member, the elastic blocking member drives the blocking block 102 to telescopically move in the oil tank 1 through the first spring 101, and the blocking block 102 will be restricted in movement by the curved end head 3 of the oil tank 1. For the disassembled oil tank 1, the blocking block 102 will automatically seal the oil port of the oil tank 1 under the action of the first spring 101. During installation, the ejector 6 will be embedded in the oil tank 1 through the thread 402, and will eject the blocking block 102 away from the curved end head 3 as the oil tank 1 is embedded. The oil will pass through the gap between the inner wall of the oil tank 1 and the blocking block 102, thereby flowing into the oil pump 2. The blocking block 102 with a conical structure can better guide the oil.

[0037] In order to achieve a better connection between the oil pump 2 and the oil tank 1, while ensuring the sealing, also ensure the smooth flow of oil, such as Figure 4 、 Figure 5 and Figure 6 As shown, the interface assembly includes a first connecting end 201 and an oil inlet port 202. The first connecting end 201 is annular and fixed to the top of the oil pump 2. The oil inlet port 202 is arranged inside the first connecting end 201 and communicates with the interior of the oil pump 2. A gap is provided between the first connecting end 201 and the oil inlet port 202. The size of the gap is the same as the thickness of the second connecting end 401. The inner wall of the first connecting end 201 is provided with a thread groove 203 matching the thread 402 and a through hole corresponding to the position of the two sets of locking holes 403.

[0038] Specifically, the interface assembly adopts a sealed limiting structure corresponding to the second connecting end 401. The second connecting end 401 is embedded in the gap between the first connecting end 201 and the oil inlet port 202. After the thread 402 and the thread groove 203 are locked, the second connecting end 401 is fixed by the elastic fixing member 5 for a second time, ensuring the firmness and sealing of the connection between the oil tank 1 and the oil pump 2.

[0039] Based on the above elastic fixing member 5, as Figure 7 As shown, it specifically includes a circular cover plate 501, a strip tube rod 502 and an insertion rod 503. The strip tube rod 502 is fixed to the through hole of the first connecting end 201. The insertion rod 503 is located inside the strip tube rod 502. One end of the insertion rod 503 is engaged with the locking hole 403 through the through hole. The other end of the insertion rod 503 is fixed to the circular cover plate 501 located outside the strip tube rod 502. An arc-shaped handle is provided on the circular cover plate 501. An elastic connector is provided on the rod body of the insertion rod 503 located inside the strip tube rod 502.

[0040] The elastic fixing member 5 mainly drives the movement of the insertion rod 503 through the circular cover plate 501 with an arc-shaped handle, and cooperates with the elastic connecting member in the strip-shaped cylindrical rod 502 to realize the operation of limiting and releasing the limiting of the second connecting end 401 by the insertion rod 503, and at the same time, it is also convenient for manual operation;

[0041] The elastic connector is described in detail as follows: the elastic connector includes a limit plate 504, a second spring 505, and a limit ring 506. The limit plate 504 is located at one end of the insertion rod 503 and is an integral structure with the insertion rod 503. The limit ring 506 is disposed inside the strip-shaped cylindrical rod 502 at one end of the circular cover 501. The second spring 505 is connected between the limit plate 504 and the limit ring 506.

[0042] In order to realize the ejection of the elastic plug in the oil tank 1 and achieve the filtering effect on the oil, as shown in FIG. Figure 4 、 Figure 5 and Figure 6 As shown, the ejector 6 includes a circular net 601, a connecting seat 602 is provided at the center of the circular net 601, an integral ejector rod 603 is provided on the top side of the connecting seat 602, and a push seat 604 for ejecting the blocking block 102 is provided on the ejector rod 603. A conical cover 605 is provided at the bottom of the circular net 601 to wrap the circular net 601. An electronic valve 606 that communicates with the interior of the oil pump 2 is connected to the conical end of the conical cover 605. The electronic valve 606 is connected to the valve line connection port 204 through a circuit.

[0043] Specifically, the ejector 6 is installed as a whole in the oil inlet port 202. The pushing seat 604 connected to the ejector rod 603 at the center pushes the blocking block 102 of the elastic blocking member to move it away from the curved end 3 of the oil tank 1, thereby realizing the circulation of oil. After the oil flows into the oil inlet port 202, it will be filtered through the circular mesh 601, thereby improving the quality of the oil. The electronic valve 606 will be directly controlled by the PLC.

[0044] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A hydraulic power unit that is easy to disassemble and maintain, characterized in that: It comprises an oil tank (1) and an oil pump (2), wherein the oil tank (1) and the oil pump (2) are detachably connected; The oil tank (1) is provided with a concave curved end head (3), the curved end head (3) is provided with an oil outlet end head which is an integral structure with the oil tank (1), the oil outlet end head is provided with a rotating disk (4) for disassembling and assembling the oil tank (1) and the oil pump (2), the bottom end face of the rotating disk (4) is provided with a second connecting end head (401) connected to the oil pump (2), and the inside of the oil tank (1) is provided with an elastic blocking member for controlling the inflow and outflow of oil in the oil tank (1); An oil pump (2) is provided with an interface assembly connected to a second connection terminal (401) at its top, an ejection member (6) for controlling the ejection of the elastic blocking member is provided within the interface assembly, and a valve line connection port (204) and two sets of elastic fixing members (5) for limiting and fixing the second connection terminal (401) after connection with the interface assembly are provided on an outer wall of the interface assembly.

2. A hydraulic power unit that is easy to disassemble and maintain according to claim 1, characterized in that: The second connecting end (401) and the rotating disk (4) are of an integrated structure. The second connecting end (401) is arranged at the center of the bottom end surface of the rotating disk (4) and passes through the rotating disk (4) to communicate with the interior of the oil tank (1). The outer wall of the second connecting end (401) is provided with a thread (402) and a locking hole (403), and the locking hole (403) is provided in two groups.

3. The hydraulic power unit that is easy to disassemble and maintain according to claim 1, characterized in that: The elastic blocking member comprises a first spring (101) and a blocking block (102); the blocking block (102) is clamped to the curved end (3) and the top and bottom of the blocking block (102) are circular convex structures; one end of the first spring (101) is connected to the blocking block (102), and the other end is connected to the center position of the top surface inside the oil tank (1) through a fixed plate.

4. The hydraulic power unit that is easy to disassemble and maintain according to claim 1, characterized in that: The interface assembly comprises a first connecting end (201) and an oil inlet port (202); the first connecting end (201) is annular in structure and is fixed to the top of the oil pump (2); the oil inlet port (202) is arranged inside the first connecting end (201) and is communicated with the inside of the oil pump (2); a gap is provided between the first connecting end (201) and the oil inlet port (202); the size of the gap is the same as the thickness of the second connecting end (401); a thread groove (203) matching the thread (402) and a through hole corresponding to the position of the two sets of locking holes (403) are provided on the inner wall of the first connecting end (201).

5. The hydraulic power unit that is easy to disassemble and maintain according to claim 4, characterized in that: The elastic fixing member (5) comprises a circular cover plate (501), a strip tube rod (502) and an insertion rod (503); the strip tube rod (502) is fixed to the through hole of the first connecting end (201); the insertion rod (503) is located inside the strip tube rod (502); one end of the insertion rod (503) is engaged with the locking hole (403) through the through hole; the other end of the insertion rod (503) is fixed to the circular cover plate (501) located outside the strip tube rod (502); an arc-shaped handle is provided on the circular cover plate (501); and an elastic connecting member is provided on the rod body of the insertion rod (503) located inside the strip tube rod (502).

6. The hydraulic power unit that is easy to disassemble and maintain according to claim 5, characterized in that: The elastic connecting member comprises a limiting plate (504), a second spring (505) and a limiting ring (506); the limiting plate (504) is located at one end of the insertion rod (503) and forms an integral structure with the insertion rod (503); the limiting ring (506) is arranged inside the strip-shaped cylindrical rod (502) at one end of the circular cover plate (501); and the second spring (505) is connected between the limiting plate (504) and the limiting ring (506).

7. The hydraulic power unit that is easy to disassemble and maintain according to claim 3, characterized in that: The ejector (6) comprises a circular net (601), a connecting seat (602) is provided at the center of the circular net (601), a top side of the connecting seat (602) is provided with an integrated ejector rod (603), the ejector rod (603) is provided with a pushing seat (604) for ejecting the blocking block (102), a conical cover (605) is provided at the bottom of the circular net (601) for wrapping the circular net (601), an electronic valve (606) connected to the inside of the oil pump (2) is connected at the conical end of the conical cover (605), and the electronic valve (606) is connected to the valve line connection port (204) through a circuit.

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