A remote control driver for large bore hydraulically operated valves

Abstract

The present application relates to the technical fields of hydraulic valve driving equipment, in particular to a remote control driver for large-diameter hydraulic operation valve, comprising an oil tank, an electrical cover, a hydraulic driving mechanism and a fixing frame, the electrical cover is internally provided with an oil inlet valve block, an oil pump, a motor, a pressure regulating valve and a proportional valve, the hydraulic driving mechanism comprises a cylinder body, an oil way cover, two groups of piston rods, a gear and an output shaft, the movement directions of the two groups of piston rods are opposite, and the opposite sides of the two groups of piston rods are respectively provided with a rack of meshing gears, the outer end of the output shaft extends out of the cylinder body, the outer end of the output shaft is connected with a rotary joint, and the rotary joint can be coaxially sleeved on a valve rod of a target operation valve and can transmit torque. The driver provided by the present application can be used for various hydraulic operation valves, adopts an electro-hydraulic combined mode, can overcome the shortcomings of pure hydraulic remote control and pure electric remote control at the same time, can realize remote control and manual operation near the machine, adopts integrated design, and is convenient and fast in field arrangement and installation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic valve driving equipment, in particular to a remote control driver for large-diameter hydraulic operation valve. BACKGROUND

[0002] The various construction equipment in the marine vessel is mostly powered by hydraulic power in use, and the hydraulic motor of these equipment is used frequently, and the operation valve thereof is usually a large-diameter and large-displacement hydraulic valve. This kind of operation valve is usually manually operated, but a large torque is required to rotate the large-diameter hydraulic operation valve, so it is very laborious to manually operate. In addition, many working conditions need to be remotely controlled and operated, and manual operation cannot meet the requirements of this special working condition. At present, some marine vessels will customize remote control driving equipment for this kind of hydraulic operation valve when they are built, but they are all pure hydraulic remote control or pure electric remote control. However, both of them have some problems. For example, the pure hydraulic remote control has the defects of more leakage points caused by long-distance laying of hydraulic pipelines, many safety risks of oil leakage caused by wall and room penetrating technology, large maintenance workload and difficulty, long action delay of remote hydraulic control, poor sensitivity, etc. The pure electric remote control drives the operation valve by using a motor as the main driving force, so a high-power motor is needed and strong electric lines need to be laid. For marine vessels, the exposed motor and strong electric lines have the defects of strict requirements such as corrosion resistance, waterproofness, motor weather resistance, temperature control, which are difficult to meet. Moreover, the motor and the operation valve of the target construction equipment need to be customized and matched, and the required torque of the operation valve of different construction equipment is quite different, which leads to great difficulty in customization and high cost. SUMMARY

[0003] In order to overcome the defects in the prior art, the task of the present application is to provide a remote control driver for large-diameter hydraulic operation valve, which can be used for the hydraulic operation valve of various construction equipment, and adopts an electro-hydraulic combination mode, which can overcome the defects of pure hydraulic remote control and pure electric remote control, and can realize remote control and manual operation near the machine, and the switching is convenient and flexible. The integrated design is adopted, and the field arrangement and installation are convenient and fast.

[0004] The task of the present application is realized by the following technical scheme:

[0005] A remote control driver for large pass hydraulic operation valve, comprising a fixed connection in an integrated oil tank, electrical cover, hydraulic drive mechanism and fixed frame, the electrical cover is provided with oil inlet valve block, oil pump, motor, pressure regulating valve, proportional valve, the remote control module of the driver is electrically connected with the motor and proportional valve and can control its work, the motor is used for driving the oil pump, the oil pump is used for providing power oil source for the hydraulic drive mechanism, the hydraulic drive mechanism comprises a cylinder body, oil way covers located at both ends of the cylinder body, two groups of piston rods arranged in parallel upward and downward between the two oil way covers, a gear arranged between the two groups of piston rods, and an output shaft vertically connected with the gear shaft center, the movement directions of the two groups of piston rods are opposite, and the opposite sides of the two groups of piston rods are respectively provided with a rack meshing with upper and lower ends of the gear, the outer end of the output shaft extends out of the cylinder body and is rotatably and sealingly connected with the cylinder body, and the outer end of the output shaft is also connected with a rotary joint, the rotary joint comprises a sleeve and an operating handle, one end of the sleeve is coaxially sleeved on the outer end of the output shaft and can rotate relative to the output shaft, and the sleeve and the output shaft are correspondingly provided with a first pin hole for the operating handle to pass through so as to lock the sleeve and the output shaft, the other end of the sleeve is provided with a second pin hole on the outer wall and an axial key groove on the inner wall, and the sleeve can be coaxially sleeved on the valve rod of the target hydraulic operation valve and can be clamped with the key pin on the valve rod through the key groove.

[0006] As a preferred technical scheme, the output shaft is also provided with an angle feedback sensor for detecting the rotation angle, the angle feedback sensor is wired or wirelessly connected with the remote control module so as to transmit the rotation angle signal in real time, and the remote control module can realize closed-loop feedback control of the rotation angle of the output shaft through the rotation angle signal.

[0007] As a preferred technical scheme, the electrical cover is fixedly connected below the oil tank, and the electrical cover is also provided with a mounting seat, the oil inlet valve block, the oil pump, the motor, the pressure regulating valve and the proportional valve are arranged around the mounting seat and are fixedly connected with the mounting seat.

[0008] As a preferred technical scheme, the electrical cover is a sealed waterproof cover, and the lower end of the electrical cover is provided with an interface for connecting the power supply line and the control line.

[0009] As a preferred technical scheme, the motor is a micro motor, and the oil pump is a micro hydraulic pump.

[0010] As a preferred technical scheme, the fixed frame comprises a fixed frame for covering the top of the hydraulic valve to be operated and being fixedly connected therewith, and connecting arms extending forward from both sides of the fixed frame, and the other end of the connecting arm is fixedly connected with the hydraulic drive mechanism.

[0011] Compared with the prior art, the remote control driver for the large-passage hydraulic operation valve has the following advantages: it can be used for the hydraulic operation valve of various construction equipment, and adopts the electro-hydraulic combination mode, so that the shortcomings of the pure hydraulic remote control and the pure electric remote control can be overcome, and the remote control and the manual operation near the machine can be realized, the switching is convenient and flexible, the integrated design is adopted, and the field arrangement and installation are convenient and fast.

[0012] The concept, specific structure and effects of the present application will be further described below with reference to the drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the remote control driver for the large-passage hydraulic operation valve in the embodiment in the use state;

[0014] Figure 2 is an exploded structural schematic view of Figure 1 ;

[0015] Figure 3 is a structural schematic view of the remote control driver for the large-passage hydraulic operation valve in the embodiment after omitting the fixing frame, the cylinder body and part of the electrical cover;

[0016] Figure 4 is a structural schematic view of Figure 3 from another perspective.

[0017] 1, oil tank; 2, electrical cover; 21, oil inlet valve block; 22, oil pump; 23, motor; 24, pressure regulating valve; 25, proportional valve; 26, mounting seat; 27, interface; 3, hydraulic drive mechanism; 31, cylinder body; 32, oil way cover; 33, piston rod; 331, rack; 34, gear; 35, output shaft; 36, angle feedback sensor; 4, rotary joint; 41, sleeve; 411, first pin hole; 412, second pin hole; 413, key groove; 42, operating handle; 5, fixing frame; 51, fixed frame; 52, connecting arm; 100, operation valve; 101, valve rod; 1011, key pin. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. In addition, it should be understood that similar words such as "several" and "multiple" used in the specification and claims of this application mean two or more. Unless otherwise specified, similar words such as "front", "back", "bottom", and "top" are only for convenience of explanation and are not limited to one position or one spatial orientation. Similar words such as "connect" or "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 directly connected or indirectly connected through an intermediate element. It is not limited to physical or mechanical connections, and can also include electrical connections. For those of ordinary skill in the art, the specific meanings of the above words in this application can be understood according to specific circumstances.

[0019] like Figures 1-4 As shown, the present embodiment provides a remote control driver for a large-diameter hydraulic operating valve, comprising an oil tank 1, an electrical cover 2, a hydraulic drive mechanism 3 and a fixing frame 5 fixedly connected together. The electrical cover 2 is provided with an oil inlet valve block 21, an oil pump 22, a motor 23, a pressure regulating valve 24, and a proportional valve 25. The remote control module of the driver is electrically connected to the motor 23 and the proportional valve 25 and can control their operation. The motor 23 is used to drive the oil pump 22, and the oil pump 22 is used to provide a power oil source for the hydraulic drive mechanism 3. The hydraulic drive mechanism 3 includes a cylinder body 31, an oil circuit cover 32 located at both ends of the cylinder body 31, two groups of piston rods 33 located between the two oil circuit covers 32 and arranged in parallel up and down, a gear 34 arranged between the two groups of piston rods 33, and an output shaft 3 perpendicular to the axis of the gear 34. 5. The movement directions of the two groups of piston rods 33 are opposite, and opposite sides are respectively provided with racks 331 that mesh with the upper and lower ends of the gear 34. The outer end of the output shaft 35 extends out of the cylinder body 31 and is rotatably sealed therewith. The outer end of the output shaft 35 is also connected to the rotary joint 4, which includes a sleeve 41 and an operating handle 42. One end of the sleeve 41 is coaxially sleeved outside the output shaft 35 and can rotate relative to each other. The sleeve 41 and the output shaft 35 are correspondingly provided with a first pin hole 411 for the operating handle 42 to pass through, thereby locking the sleeve 41 and the output shaft 35. The outer wall of the other end of the sleeve 41 is provided with a second pin hole 412, and the inner wall is provided with an axial keyway 413, which can be coaxially sleeved on the valve stem 101 of the target hydraulic operating valve 100 and can be clamped with the key pin 1011 on the valve stem 101 through the keyway 413.

[0020] The embodiment provides a remote control driver for a large-passage hydraulic operation valve, which comprises an integrated fixed connection of an integrated oil tank 1, an electrical cover 2, a hydraulic drive mechanism 3 and a fixing frame 5. In use, the sleeve 41 of the rotary joint 4 is coaxially sleeved with the valve rod 101 of the target hydraulic operation valve 100, then the driver is fixedly connected to the valve body of the operation valve 100 by using the fixing frame 5, when remote control is adopted, the operation handle 42 is locked and fixed by penetrating the first through hole on the sleeve 41 and the output shaft 35, a remote control module (such as a driver's cabin control console) sends a signal to the motor 23 and the proportional valve 25, the motor 23 drives the oil pump 22, the oil pump 22 provides a power oil source for the hydraulic drive mechanism 3, the pressure of the power oil source is set in advance by the pressure regulating valve 24, and the proportional valve 25 is proportionally actuated according to the signal given by the remote control module, so that the proportional torque output by the hydraulic drive mechanism 3 is controlled to drive the output shaft 35 to rotate. The specific process is as follows: the power oil source enters the hydraulic drive mechanism 3, drives two groups of piston rods 33 to move axially in opposite directions, drives the gear 34 to rotate by using the rack 331 on the piston rod 33, and drives the output shaft 35 to rotate, so as to convert the linear motion of the two groups of piston rods 33 into rotary motion with large torque, and the torque is transmitted through the rotary joint 4 to drive the valve rod 101 of the operation valve 100 to rotate, so as to realize remote control and driving of the operation valve 100. When it is required to adopt manual operation near the machine, the operation handle 42 is only required to be pulled out of the first through hole and then inserted into the second through hole, the valve rod 101 of the operation valve 100 can be driven to rotate by manually twisting the operation handle 42, manual operation is realized, and at this time, the sleeve 41 and the output shaft 35 are unlocked and can rotate relatively freely, so the driver cannot be driven to act reversely and is not subjected to resistance of the driver. Moreover, the driver of the patent forms an independent hydraulic system by the integrated oil tank 1, the electrical cover 2 and the hydraulic drive mechanism 3, the hydraulic drive mechanism 3 is used as a power mechanism for driving the valve rod 101 of the operation valve 100 to rotate, the driving torque is large and is convenient to control, is suitable for various large-passage hydraulic operation valves 100, the motor 23 is only responsible for driving the oil pump 22, so the motor 23 can adopt a micro motor 23, the oil pump 22 can also adopt a micro oil pump 22, the torque of the micro motor 23 does not need to be matched with the operation valve 100 of the construction equipment, so different power motors 23 do not need to be customized for different construction equipment, in addition, the micro motor 23 is small in size and is convenient to be built-in in the electrical cover 2 and does not need to be exposed to the atmosphere, and the micro motor 23 only needs to be driven by weak current, is more convenient to remote control, does not need to lay strong current lines, and can effectively avoid problems that cannot be met in strict requirements of corrosion resistance, waterproofness, motor 23 weather resistance, temperature control and the like existing in pure electric remote control. Moreover, the electrical cover 2 has an independent closed-loop hydraulic system, and hydraulic pipelines do not need to be laid, so problems existing in pure hydraulic remote control can also be effectively avoided.

[0021] In summary, the embodiment provides a remote control driver for large pass hydraulic operation valve, which can be used for various hydraulic operation valves 100 of construction equipment, and adopts the combination of electric and hydraulic, which can overcome the shortcomings of pure hydraulic remote control and pure electric remote control, and can realize remote control and manual operation near the machine, and the switching is flexible, and the integrated design is convenient for field arrangement and installation.

[0022] As a preferred embodiment, the output shaft 35 is also provided with an angle feedback sensor 36 for detecting the rotation angle, which is wired or wirelessly connected to the remote control module to transmit the rotation angle signal in real time, and the remote control module can realize closed-loop feedback control of the rotation angle of the output shaft 35 through the rotation angle signal. The advantage of this design is that the hydraulic drive mechanism 3 can accurately control the rotation angle of the output shaft 35, and further accurately control the opening size and direction of the operation valve 100.

[0023] As a preferred embodiment, the electrical cover 2 is fixedly connected below the oil tank 1, and the electrical cover 2 is also provided with a mounting seat 26, and the oil inlet valve block 21, the oil pump 22, the motor 23, the pressure regulating valve 24, and the proportional valve 25 are arranged around the mounting seat 26 and are fixedly connected with the mounting seat 26. The advantage of this design is that the structure is simple and compact, easy to install, and the hydraulic oil circuit is smoother.

[0024] As a preferred embodiment, the electrical cover 2 is a sealed and waterproof electrical cover 2, and the lower end of the electrical cover 2 is provided with an interface 27 for connecting power supply lines and control lines. In this embodiment, the electrical cover 2 is made of 316L material and cooperates with a protective cover to achieve IP68 protection level, which is convenient for application on the operation valve 100 of various construction equipment exposed on the deck of a marine vessel.

[0025] As a preferred embodiment, the fixing frame 5 includes a fixing frame 51 for covering the top of the to-be-operated hydraulic valve and fixedly connected therewith, and a connecting arm 52 extending forward from both sides of the fixing frame 51, and the other end of the connecting arm 52 is fixedly connected with the hydraulic drive mechanism 3. The advantage of this design is that the driver can be installed and fixed on the valve body of the target operation valve 100, and is suspended and arranged, which is not affected by the uneven structure of the ground or deck surface or other equipment, and the installation method is flexible and convenient.

[0026] The above description is only the preferred embodiment of the present application and the explanation of the technical principles. It should be understood by those skilled in the art that the application scope of the present application is not limited to the above-mentioned technical features of the specific combination of the embodiments, and also covers other embodiments formed by the above-mentioned technical features or equivalent features in any combination without departing from the concept of the application. For example, the above-mentioned features and the technical features disclosed in the present application (but not limited to) with similar functions are replaced with each other to form the embodiments.

Claims

1. A remote control actuator for a large-diameter hydraulically operated valve, characterized in that: The invention comprises an oil tank (1), an electrical cover (2), a hydraulic drive mechanism (3) and a fixing frame (5) which are fixedly connected together. The electrical cover (2) is provided with an oil inlet valve block (21), an oil pump (22), a motor (23), a pressure regulating valve (24), and a proportional valve (25). The remote control module of the driver is electrically connected to the motor (23) and the proportional valve (25) and can control their operation. The motor (23) is used to drive the oil pump (22), and the oil pump (22) is used to provide a power oil source for the hydraulic drive mechanism (3). The hydraulic drive mechanism (3) comprises a cylinder (31), An oil circuit cover (32) is located at both ends of the cylinder body (31), two groups of piston rods (33) are located between the two oil circuit covers (32) and are arranged in parallel in an upper and lower direction, a gear (34) is arranged between the two groups of piston rods (33), and an output shaft (35) is vertically connected to the axis of the gear (34). The movement directions of the two groups of piston rods (33) are opposite, and the opposite sides are respectively provided with a rack (331) meshing with the upper and lower ends of the gear (34). The outer end of the output shaft (35) extends out of the cylinder body (31) and is rotatably sealed therewith. The outer end of the output shaft (35) is also connected back to the cylinder body (31). The rotary joint (4) includes a sleeve (41) and an operating handle (42), one end of the sleeve (41) is coaxially sleeved outside the output shaft (35) and can rotate relative to each other, and the sleeve (41) and the output shaft (35) are correspondingly provided with a first pin hole (411) for the operating handle (42) to pass through, thereby locking the sleeve (41) and the output shaft (35), and the outer wall of the other end of the sleeve (41) is provided with a second pin hole (412), and the inner wall is provided with an axial key groove (413), so that the sleeve (41) can be coaxially sleeved on the valve stem (101) of the target hydraulic operating valve (100) The output shaft (35) is provided with an angle feedback sensor (36) for detecting the rotation angle, and the angle feedback sensor (36) is connected to the remote control module by wire or wireless so as to transmit the angle signal in real time. The remote control module can realize closed-loop feedback control of the output shaft (35) angle through the angle signal. The electrical cover (2) is a sealed waterproof cover, and the lower end of the electrical cover (2) is provided with an interface (27) for connecting the power line and the control line.

2. The remote control actuator for a large-diameter hydraulically operated valve according to claim 1, characterized in that: The electrical cover (2) is fixedly connected under the oil tank (1), and a mounting seat (26) is further provided in the electrical cover (2). The oil inlet valve block (21), the oil pump (22), the motor (23), the pressure regulating valve (24), and the proportional valve (25) are arranged around the mounting seat (26) and are all fixedly connected to the mounting seat (26).

3. The remote control actuator for a large-diameter hydraulically operated valve according to claim 1, characterized in that: The motor (23) is a micro motor (23), and the oil pump (22) is a micro hydraulic pump.

4. The remote control actuator for a large-diameter hydraulically operated valve according to claim 1, characterized in that: The fixing frame (5) comprises a fixing frame (51) for covering the top of the hydraulic valve to be operated and fixedly connected thereto, and connecting arms (52) extending forward from both sides of the fixing frame (51), the other end of the connecting arm (52) being fixedly connected to the hydraulic drive mechanism (3).

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