Electro-hydraulic driving device for valve

Abstract

The utility model discloses a valve electro-hydraulic driving device which comprises a shell, the shell is of a hollow structure, a driving device of a valve is contained in the shell, the lower surface of the shell is connected with a pipeline body, a valve seat is arranged on the surface of the pipeline body in a penetrating mode, and the valve is arranged in the valve seat. And a valve rod is arranged on the surface of the valve in the valve seat, the valve rod penetrates through the upper surface of the valve seat, the valve rod is rotationally connected with the upper surface of the valve seat, and a motor is arranged on the upper surface of the shell in a penetrating mode. According to the valve electro-hydraulic driving device, the motor, the hydraulic pump, the hydraulic motor and other driving equipment are installed in the shell, the control process of the valve is achieved through connection between the shell and a pipeline valve, the device can be connected and detached from a pipeline more easily through the small-size shell, and the device can be operated and maintained conveniently; and the output end of the hydraulic motor is provided with a convex block clamped with the valve rod, so that stable driving after the device is connected with the valve is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve electro-hydraulic drive device. Background Art

[0002] A valve is a device used to control the flow of fluid in a pipe or container. Valves are widely used in various fields such as industry and civil use. Currently, valve control mainly uses control devices to open and close the valve. The more common drive control devices include electric control, hydraulic control or electro-hydraulic drive control.

[0003] Currently, the electro-hydraulic drive device of a valve is usually equipped with multiple components such as a motor, a hydraulic pump, a hydraulic cylinder, and a control valve group. The overall volume is relatively large, and it may face installation difficulties in some installation sites with limited space. The large electro-hydraulic drive device is also not convenient for disassembly and maintenance from the pipeline valve, which increases the difficulty of operation and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a valve electro-hydraulic drive device, which is provided with a hydraulic motor to control the valve stem in the valve, thereby realizing the control process of the valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a valve electro-hydraulic drive device, comprising a shell, the shell being a hollow structure, the interior of the shell accommodating a valve drive device, the lower surface of the shell being connected to a pipeline body, the surface of the pipeline body being penetrated by a valve seat, the interior of the valve seat being provided with a valve, and the valve surface of the valve interior of the valve seat being provided with a valve stem, the valve stem penetrating the upper surface of the valve seat, the valve stem being rotatably connected to the upper surface of the valve seat, the upper surface of the shell being penetrated by a motor, the output end of the motor being connected to a hydraulic pump, the interior of the shell being provided with a hydraulic motor, the hydraulic motor being connected to the hydraulic pump via a pipeline, and the output end of the hydraulic motor penetrating the lower surface of the shell.

[0006] Preferably, a tooth-shaped protrusion is provided on the outer surface of the output end of the hydraulic motor, the output end of the hydraulic motor is engaged with the valve stem, and a corresponding groove is provided on the upper surface of the valve stem.

[0007] By adopting the above technical solution, the coupling movement after connection can be achieved by utilizing the engagement between the output end of the hydraulic motor and the valve stem.

[0008] Preferably, a diversion pipeline structure is provided on the surface of the hydraulic motor, and the diversion pipeline structure is provided with a plurality of connecting pipes 2 connected to the connecting pipe 1 to realize the diversion of oil.

[0009] By adopting the above technical solution, the oil can be diverted by utilizing the diversion pipe structure to avoid oil blockage.

[0010] Preferably, the diversion pipe structure includes a connecting pipe 1, which is connected to the hydraulic motor, and the other end of the connecting pipe 1 is connected to three connecting pipes 2, and the other ends of the three connecting pipes 2 are connected to the side surface of the same connecting pipe 1, where the connecting pipe 1 is connected to a delivery pipe, and the other end of the delivery pipe passes through the side surface of the outer shell.

[0011] By adopting the above technical solution, multiple connecting pipes are used to transport the oil, thereby avoiding malfunction of the device caused by blockage of one of the pipes.

[0012] Preferably, a supporting connection structure is provided on the lower surface of the shell. The supporting connection structure is provided with a connecting plate for connecting with the pipeline body, and a supporting block is provided to support the shell.

[0013] By adopting the above technical solution, the supporting connection structure can be used to provide support between the device and the pipeline.

[0014] Preferably, the supporting connection structure includes a support rod, which is fixedly installed on the lower surface of the shell, and the support rod is a telescopic structure. The other end of the support rod is connected to a support block, and the support block is an arc-shaped plate structure. The support rod and the support block are symmetrically arranged in two groups on the lower surface of the shell, and a connecting plate is fixedly installed on the lower surface of the shell, and the connecting plate is a circular ring structure. The surface of the connecting plate is symmetrically provided with connecting bolts, and the connecting bolts are connected to the threaded holes on the surface of the shell.

[0015] By adopting the above technical solution, the telescopic support rod can be used to provide support between the pipeline body and the device.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the valve electro-hydraulic drive device:

[0017] 1. This device installs driving equipment such as the motor, hydraulic pump, and hydraulic motor in a housing, and uses the connection between the housing and the pipeline valve to achieve valve control. The small size of the housing makes it easier to connect and disassemble the device from the pipeline, facilitating operation and maintenance of the device. In addition, a bump is provided on the output end of the hydraulic motor to engage with the valve stem, increasing the stability of the drive after the device is connected to the valve.

[0018] 2. This device sets a connecting pipe 1 at the oil delivery port of the hydraulic motor. Three connecting pipes 2 are set between the connecting pipes 1 to form a diversion structure. The diversion structure is used to realize the oil delivery while ensuring the stability of the oil delivery and avoiding oil blockage caused by blockage of the connecting pipe 2.

[0019] 3. The device is provided with a connecting plate and connecting bolts on the lower surface of the shell to quickly connect and disassemble the device and the pipeline, and a telescopic support rod is provided on the lower surface of the shell to connect the support block, and the support block is used to support the shell on the pipeline surface to improve the stability of the device connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the utility model and the pipeline body;

[0022] Figure 3 This is a schematic diagram of the front cross-section structure of the shell of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection between the valve stem and the hydraulic motor of the utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the valve stem and the hydraulic motor of the utility model.

[0025] In the figure: 1. Outer casing; 2. Pipe body; 3. Valve seat; 4. Valve stem; 5. Motor; 6. Hydraulic pump; 7. Hydraulic motor; 8. Connecting pipe 1; 9. Connecting pipe 2; 10. Delivery pipe; 11. Support rod; 12. Support block; 13. Connecting plate; 14. Connecting bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a valve electro-hydraulic drive device, including a shell 1, a pipeline body 2, a valve seat 3, a valve stem 4, a motor 5, a hydraulic pump 6, a hydraulic motor 7, a connecting pipe 1 8, a connecting pipe 2 9, a delivery pipe 10, a support rod 11, a support block 12, a connecting plate 13, and a connecting bolt 14.

[0028] A supporting connection structure is provided on the lower surface of the shell 1. The supporting connection structure is provided with a connecting plate 13 connected to the pipe body 2. At the same time, a support block 12 is provided to support the shell 1. The supporting connection structure includes a support rod 11. The support rod 11 is fixedly installed on the lower surface of the shell 1. The support rod 11 is a telescopic structure. The other end of the support rod 11 is connected to a support block 12. The support block 12 is an arc-shaped plate structure. The support rod 11 and the support block 12 are symmetrically provided in two groups on the lower surface of the shell 1. A connecting plate 13 is fixedly installed on the lower surface of the shell 1. The connecting plate 13 is a circular ring structure. The surface of the connecting plate 13 is symmetrically provided with connecting bolts 14. The connecting bolts 14 are connected to the threaded holes on the surface of the shell 1. The shell 1 is a hollow structure. The lower surface of the shell 1 The surface is connected to the pipeline body 2, and a valve seat 3 is provided on the surface of the pipeline body 2, and a valve is provided inside the valve seat 3, and a valve stem 4 is provided on the valve surface inside the valve seat 3. The valve stem 4 penetrates the upper surface of the valve seat 3, and the valve stem 4 is rotatably connected to the upper surface of the valve seat 3. The interior of the shell 1 accommodates a valve driving device, and a motor 5 is provided on the upper surface of the shell 1. The output end of the motor 5 is connected to the hydraulic pump 6. A hydraulic motor 7 is provided inside the shell 1, and the hydraulic motor 7 is connected to the hydraulic pump 6 through a pipeline. The output end of the hydraulic motor 7 penetrates the lower surface of the shell 1, and the outer surface of the output end of the hydraulic motor 7 is provided with a toothed protrusion. The output end of the hydraulic motor 7 is engaged with the valve stem 4, and the upper surface of the valve stem 4 is provided with a corresponding groove;

[0029] When using this device, the output end of the hydraulic motor 7 on the lower surface of the shell 1 is inserted into the groove of the valve stem 4. At this time, the support block 12 on the lower surface of the shell 1 contacts the upper surface of the pipeline body 2, and the shell 1 and the pipeline body 2 are fixed using the connecting bolts 14. During this process, the support rod 11 contracts until the support block 12 is tightly pressed against the upper surface of the pipeline body 2. The support rod 11 and the support block 12 play a supporting role between the pipeline body 2 and the shell 1, thereby improving the stability of the device connection. The delivery pipe 10 on the side surface of the shell 1 is connected to the oil, and the motor 5 is started. The motor 5 drives the hydraulic pump 6 to start, and the hydraulic pump 6 inputs the oil from the delivery pipe 10 into the hydraulic motor 7, driving the hydraulic motor 7 to rotate. The rotating hydraulic motor 7 drives the valve stem 4 to rotate, thereby realizing the opening and closing process of the valve.

[0030] A diversion pipe structure is provided on the surface of the hydraulic motor 7. The diversion pipe structure is provided with a plurality of connecting pipes 2 9 connected to the connecting pipe 1 8 to realize oil diversion. The diversion pipe structure includes a connecting pipe 1 8, which is connected to the hydraulic motor 7. The other end of the connecting pipe 1 8 is connected to three connecting pipes 2 9. The other ends of the three connecting pipes 2 9 are connected to the side surface of the same connecting pipe 1 8. The connecting pipe 1 8 at this location is connected to a delivery pipe 10. The other end of the delivery pipe 10 passes through the side surface of the housing 1.

[0031] When the oil enters the hydraulic motor 7 through the delivery pipe 10, the oil enters the connecting pipe 1 8 from the delivery pipe 10 and is input into the hydraulic motor 7 through the three connecting pipes 2 9 on the other side of the connecting pipe 1 8. The three connecting pipes 2 9 have a diversion effect to avoid excessive oil pressure. If the pipeline is blocked, the other connecting pipe 2 9 can also be used to realize the oil delivery process to avoid device abnormality.

[0032] Working principle: When using the electro-hydraulic drive device of the valve, insert the output end of the hydraulic motor 7 into the groove of the valve stem 4, and use the connecting bolt 14 to fix the outer shell 1 and the pipeline body 2. At this time, the support block 12 and the support rod 11 play a supporting role between the outer shell 1 and the pipeline body 2. Connect the delivery pipe 10 to the oil. After the motor 5 is started, it drives the hydraulic pump 6 to start. The hydraulic pump 6 inputs the oil from the delivery pipe 10 into the connecting pipe 8, and inputs it into the hydraulic motor 7 through the three connecting pipes 9 to avoid oil channel blockage. The hydraulic motor 7 rotates, and the rotating hydraulic motor 7 drives the valve stem 4 to rotate, thereby realizing the opening and closing process of the valve, increasing the overall practicality.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve electro-hydraulic drive device, comprising a housing (1), wherein the housing (1) is a hollow structure, wherein the housing (1) accommodates a valve drive device, and wherein the lower surface of the housing (1) is connected to a pipeline body (2), wherein: A valve seat (3) is provided through the surface of the pipeline body (2), a valve is provided inside the valve seat (3), and a valve stem (4) is provided on the valve surface inside the valve seat (3), the valve stem (4) passes through the upper surface of the valve seat (3), and the valve stem (4) is rotatably connected to the upper surface of the valve seat (3), a motor (5) is provided through the upper surface of the housing (1), the output end of the motor (5) is connected to a hydraulic pump (6), a hydraulic motor (7) is provided inside the housing (1), the hydraulic motor (7) is connected to the hydraulic pump (6) through a pipeline, and the output end of the hydraulic motor (7) passes through the lower surface of the housing (1).

2. The valve electro-hydraulic drive device according to claim 1, characterized in that: The outer surface of the output end of the hydraulic motor (7) is provided with a tooth-shaped protrusion, the output end of the hydraulic motor (7) is engaged and matched with the valve stem (4), and the upper surface of the valve stem (4) is provided with a corresponding groove.

3. The valve electro-hydraulic drive device according to claim 1, characterized in that: A diversion pipeline structure is provided on the surface of the hydraulic motor (7), and the diversion pipeline structure is provided with a plurality of connecting pipes 2 (9) connected to the connecting pipe 1 (8) to realize the diversion of oil.

4. The valve electro-hydraulic drive device according to claim 3, characterized in that: The diversion pipeline structure includes a connecting pipe (8), the connecting pipe (8) is connected to the hydraulic motor (7), the other end of the connecting pipe (8) is connected to three connecting pipes (9), the other ends of the three connecting pipes (9) are connected to the side surface of the same connecting pipe (8), and the connecting pipe (8) at this location is connected to a delivery pipe (10), and the other end of the delivery pipe (10) passes through the side surface of the housing (1).

5. The valve electro-hydraulic drive device according to claim 1, characterized in that: A supporting connection structure is provided on the lower surface of the shell (1), and the supporting connection structure is provided with a connecting plate (13) for connecting with the pipeline body (2), while a supporting block (12) is provided to support the shell (1).

6. The valve electro-hydraulic drive device according to claim 5, characterized in that: The supporting connection structure comprises a support rod (11), wherein the support rod (11) is fixedly mounted on the lower surface of the housing (1), the support rod (11) is a telescopic structure, the other end of the support rod (11) is connected to a support block (12), the support block (12) is an arc-shaped plate structure, two groups of the support rod (11) and the support block (12) are symmetrically arranged on the lower surface of the housing (1), a connecting plate (13) is fixedly mounted on the lower surface of the housing (1), the connecting plate (13) is a circular ring structure, and connecting bolts (14) are symmetrically arranged on the surface of the connecting plate (13), and the connecting bolts (14) are connected to threaded holes on the surface of the housing (1).

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