Dual-hydraulic motor multi-rotation mode remote control actuator

Abstract

The application discloses a double-hydraulic motor multi-rotation mode remote control execution driver, which comprises a fixed base, a self-locking push rod motor, an A-path valve execution rack, a B-path valve execution rack and an execution rudder, the self-locking push rod motor is installed on the front side of the fixed base, the A-path valve execution rack and the B-path valve execution rack are slidably installed on the upper part of the fixed base, the rear end of the push rod of the self-locking push rod motor is provided with a linkage support frame, the linkage support frame is slidably connected to the lower part of the fixed base, the execution rudder is fixedly installed on the lower part of the linkage support frame, the output shaft of the execution rudder is provided with a rudder gear which is in meshing transmission connection with the A-path valve execution rack and the B-path valve execution rack, the rear end of the A-path valve execution rack is fixedly connected with an A-path valve push rod, and the rear end of the B-path valve execution rack is fixedly connected with a B-path valve push rod. The application is scientific in design, can realize remote control operation of double-hydraulic equipment in multiple modes, and can meet the wireless control upgrading of hydraulic equipment in multiple occasions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic control, in particular to a double-hydraulic-motor multi-rotation-mode remote control actuator. BACKGROUND

[0002] The hydraulic equipment usually needs to be manually operated, and cannot be remotely and accurately controlled, and the multi-mode hydraulic control is difficult to be manually operated, therefore, in order to perform wireless control modification and upgrading, a remote control actuator needs to be added to the original equipment, especially for the control of double-hydraulic-reversing valves, and the present application discloses a double-hydraulic-motor multi-rotation-mode remote control actuator. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a double-hydraulic-motor multi-rotation-mode remote control actuator, which is designed scientifically and can realize multi-mode remote control of double-hydraulic equipment, and can meet the wireless control modification and upgrading of hydraulic equipment in multiple occasions.

[0004] To achieve the above-mentioned purposes, the present application adopts the following technical solutions:

[0005] The double-hydraulic-motor multi-rotation-mode remote control actuator comprises a fixed seat, a self-locking push rod motor, an A-path valve actuating rack, a B-path valve actuating rack and an actuating rudder, the fixed seat is installed on the front side of a double-hydraulic-reversing valve used for driving the movement of double-hydraulic motors, the upper front side and the rear side of the fixed seat are both provided with a fixed support plate vertically arranged along the left-right direction, the self-locking push rod motor is horizontally installed on the front side of the fixed support plate on the front side along the front-rear direction, the A-path valve actuating rack and the B-path valve actuating rack are both horizontally arranged along the front-rear direction and are slidably installed on the upper part of the fixed seat, the rear end of the push rod of the self-locking push rod motor is provided with a linkage support frame, the linkage support frame is slidably connected to the lower part of the fixed seat, the actuating rudder is fixedly installed on the lower part of the linkage support frame, a first long hole is formed in the middle part of the fixed seat along the front-rear direction, the output shaft of the actuating rudder is located on the upper side of the actuating rudder and vertically penetrates through the linkage support frame and the first long hole, a rudder gear is installed on the upper end of the output shaft of the actuating rudder and is in meshing transmission connection with the A-path valve actuating rack and the B-path valve actuating rack, the rear end of the A-path valve actuating rack is fixedly connected with an A-path valve push rod, the rear end of the B-path valve actuating rack is fixedly connected with a B-path valve push rod, the A-path valve push rod and the B-path valve push rod both horizontally penetrate through the fixed support plate on the rear side along the front-rear direction and are slidably connected with the fixed support plate on the rear side, the rear ends of the A-path valve push rod and the B-path valve push rod are respectively connected with two operating handles of the double-hydraulic-reversing valve through ball head bearings.

[0006] The fixed seat is a channel steel structure which is permeable from front to back and has an open bottom, the lower side of the front fixed support plate is fixedly connected with the front side of the upper side plate of the fixed seat, the lower side of the rear fixed support plate is fixedly connected with the rear side of the upper side plate of the fixed seat, two first guide screws are fixedly arranged on the left side and the right side of the upper side of the upper side plate of the fixed seat, second long holes are formed in the left and right side plates of the fixed seat and are permeable from left to right, two guide holes are formed in the rear fixed support plate, and the A valve push rod and the B valve push rod are respectively slidably connected in the two guide holes.

[0007] The A valve execution rack and the B valve execution rack are symmetrically arranged and have the same structure, two third long holes are formed in the A valve execution rack and the B valve execution rack and are permeable from front to back and from top to bottom, the two first guide screws on the left side are respectively vertically connected with the two third long holes in the A valve execution rack, the two first guide screws on the right side are respectively vertically connected with the two third long holes in the B valve execution rack, and the first guide screws are slidably connected with the corresponding third long holes.

[0008] The linkage support frame is horizontally arranged below the upper side plate of the fixed seat and between the left and right side plates of the fixed seat, two second guide screws are fixedly arranged on the left side and the right side of the linkage support frame, the two second guide screws on the left side are horizontally connected with the second long holes on the left side, and the two second guide screws on the right side are horizontally connected with the second long holes on the right side.

[0009] Compared with the prior art, the present application has outstanding substantial features and significant progress, and specifically, the present application has multiple working modes.

[0010] (1) A and B hydraulic motor static self-locking state

[0011] When the no-action signal is transmitted to the double hydraulic motor multi-rotation mode remote control execution driver, the steering gear is located in the middle position of the A valve execution rack and the B valve execution rack, the rear end of the A valve push rod and the B valve push rod is respectively connected with the two operating handles of the double hydraulic reversing valve through the ball bearing, and the corresponding double hydraulic reversing valve is located in the middle position, the hydraulic pump station hydraulic oil returns to the tank of the pump station through the double hydraulic reversing valve according to the working mode of the double hydraulic reversing valve, the hydraulic oil does not work on the A and B hydraulic motors, and thus the A and B hydraulic motors are in a static self-locking state.

[0012] (2) A and B hydraulic motor same direction positive rotation and acceleration

[0013] When the double-hydraulic-motor multi-rotation mode remote control execution driver receives a signal of the A and B hydraulic motors rotating forward, the push rod of the self-locking push rod motor slowly extends according to the signal size, the push rod of the self-locking push rod motor slowly extends through the linkage support frame to push the execution rudder, the execution rudder slowly extends through the linkage of the rudder gear and the A and B valve execution racks, and then the A and B valve push rods slowly drive the A and B valve spools through the two operating handles of the double-linkage hydraulic reversing valve, the A and B valve spools gradually open the forward valve path from the closed state according to the working mode of the double-linkage hydraulic reversing valve, hydraulic oil flows through the A and B hydraulic motors through the A and B forward valve paths, and thus the A and B hydraulic motors rotate forward from slow to fast;

[0014] (Three) Reverse rotation of the A and B hydraulic motors in the same direction

[0015] When the double-hydraulic-motor multi-rotation mode remote control execution driver receives a signal of the A and B hydraulic motors rotating forward, the push rod of the self-locking push rod motor slowly extends according to the signal size, the push rod of the self-locking push rod motor slowly extends through the linkage support frame to push the execution rudder, the execution rudder slowly extends through the linkage of the rudder gear and the A and B valve execution racks, and then the A and B valve push rods slowly drive the A and B valve spools through the two operating handles of the double-linkage hydraulic reversing valve, the A and B valve spools gradually open the forward valve path from the closed state according to the working mode of the double-linkage hydraulic reversing valve, hydraulic oil flows through the A and B hydraulic motors through the A and B forward valve paths, and thus the A and B hydraulic motors rotate forward from slow to fast;

[0016] (Four) Forward and reverse rotation mode of the A and B hydraulic motors

[0017] When the double-hydraulic-motor multi-rotation mode remote control execution driver receives a signal of the A and B hydraulic motors rotating forward, the push rod of the self-locking push rod motor slowly extends according to the signal size, the push rod of the self-locking push rod motor slowly extends through the linkage support frame to push the execution rudder, the execution rudder slowly extends through the linkage of the rudder gear and the A and B valve execution racks, and then the A and B valve push rods slowly drive the A and B valve spools through the two operating handles of the double-linkage hydraulic reversing valve, the A and B valve spools gradually open the forward valve path from the closed state according to the working mode of the double-linkage hydraulic reversing valve, hydraulic oil flows through the A and B hydraulic motors through the A and B forward valve paths, and thus the A and B hydraulic motors rotate forward from slow to fast;

[0018] (Five) Hybrid differential mode

[0019] When the dual-hydraulic motor multi-rotation mode remote control execution driver receives a hybrid differential dual-channel signal, the self-locking push rod motor and the execution rudder linkage work simultaneously, when A and B hydraulic motors are required to rotate forward, the push rod of the self-locking push rod motor is slowly extended according to the signal size, and the execution rudder simultaneously executes the rudder gear clockwise rotation according to the signal judgment of forward rotation or reverse rotation, if it is a forward rotation signal, then the execution rudder drives the rudder gear to rotate clockwise, according to the control principle described in mode (four), it can be known that the opening size of the forward rotation valve of the A valve core is greater than that of the B valve core, so the forward rotation speed of the A hydraulic motor is greater than that of the B hydraulic motor, otherwise, the forward rotation speed of the A hydraulic motor is less than that of the B hydraulic motor; when A and B hydraulic motors are required to rotate reversely, the push rod of the self-locking push rod motor is slowly retracted according to the signal size, and the execution rudder simultaneously executes the rudder gear clockwise rotation according to the signal judgment of forward rotation or reverse rotation, if it is a forward rotation signal, then the execution rudder drives the rudder gear to rotate clockwise, according to the control principle described in mode (four), it can be known that the opening size of the reverse rotation valve of the A valve core is less than that of the B valve core, so the reverse rotation speed of the A hydraulic motor is less than that of the B hydraulic motor, otherwise, the reverse rotation speed of the A hydraulic motor is greater than that of the B hydraulic motor.

[0020] From the above working principle, it can be known that the application can be used for a wheeled or tracked heavy load moving chassis, can realize remote control operation, can realize stepless acceleration and deceleration, free turning, U-turn and other actions, can be used for a hydraulic equipment provided with a double-connection hydraulic reversing valve, and can be used for a hydraulic drive equipment of an agricultural mechanical equipment, and can realize remote control operation, unmanned driving and other functions, and can be used for synchronous and non-synchronous extension and retraction of a double-hydraulic cylinder.

[0021] In summary, the application has scientific design, can realize multi-mode remote control operation of a dual-hydraulic equipment, and can meet wireless control modification and upgrading of the hydraulic equipment in multiple occasions. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the application.

[0023] Figure 2 is a top view of the application.

[0024] Figure 3 is a right view of the application.

[0025] Figure 4 is a front view of the application.

[0026] Figure 5 is a rear view of the application.

[0027] Figure 6 is Figure 5Sectional view along the AA direction.

[0028] Figure 7 This is an exploded view of the present invention.

[0029] Figure 8 This is a schematic diagram of the application connection of the present invention. Detailed Implementation

[0030] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0031] like Figures 1-8 As shown, the dual hydraulic motor multi-rotation mode remote control actuator includes a fixed base 1, a self-locking push rod motor 4, an A-way valve actuation rack 8, a B-way valve actuation rack 7, and an actuator servo motor 3. The fixed base 1 is installed on the front side of the dual hydraulic directional valve used to drive the movement of the dual hydraulic motors. The upper front and rear sides of the fixed base 1 are provided with fixed support plates 5 arranged vertically in the left-right direction. The self-locking push rod motor 4 is horizontally installed on the front side of the fixed support plate 5 in the front-back direction. Both the A-way valve actuator rack 8 and the B-way valve actuator rack 7 are horizontally arranged along the front-to-back direction and are slidably mounted on the upper part of the fixed base 1. A linkage support frame 9 is mounted on the rear end of the push rod of the self-locking push rod motor 4. The linkage support frame 9 is slidably connected to the lower part of the fixed base 1. The actuator servo motor 3 is fixedly mounted on the lower part of the linkage support frame 9. A first elongated hole 10, which is vertically permeable, is opened in the middle of the fixed base 1 along the front-to-back direction. The output shaft of the actuator servo motor 3 is located on the upper side of the actuator servo motor 3 and passes vertically through the linkage support frame 9 and the first elongated hole 10. A [missing information - likely a device or component] is mounted on the upper end of the output shaft of the actuator servo motor 3. The servo gear 6 is meshed with and connected to both the A-way valve actuation rack 8 and the B-way valve actuation rack 7. The rear end of the A-way valve actuation rack 8 is fixedly connected to the A-way valve push rod 12, and the rear end of the B-way valve actuation rack 7 is fixedly connected to the B-way valve push rod 13. Both the A-way valve push rod 12 and the B-way valve push rod 13 are horizontally penetrating the rear fixed support plate 5 in the front-rear direction and are slidably connected to the rear fixed support plate 5. The rear ends of the A-way valve push rod 12 and the B-way valve push rod 13 are respectively connected to the two operating handles of the double hydraulic directional valve through ball bearings (not shown in the figure).

[0032] The fixing base 1 is a channel steel structure that is open at the front and back and open at the bottom. The lower side of the front fixing support plate 5 is fixedly connected to the front side of the upper side plate of the fixing base 1, and the lower side of the rear fixing support plate 5 is fixedly connected to the rear side of the upper side plate of the fixing base 1. Two first guide screws 14 with front and back spacing are fixedly installed on the left and right sides of the upper side of the fixing base 1. The left and right sides of the fixing base 1 have second elongated holes 15 that are open at both the left and right sides along the front and back direction. Two guide holes 16 with left and right spacing are opened on the rear fixing support plate 5. The A-way valve push rod 12 and the B-way valve push rod 13 are respectively slidably connected through the two guide holes 16.

[0033] The A valve execution rack 8 and the B valve execution rack 7 are symmetrical in structure and are arranged symmetrically left and right, the A valve execution rack 8 and the B valve execution rack 7 are both provided with two third long holes 11 which are spaced apart in front and back directions and are vertically through, the two first guide screws 14 on the left side are vertically through the two third long holes 11 on the A valve execution rack 8 respectively, the two first guide screws 14 on the right side are vertically through the two third long holes 11 on the B valve execution rack 7 respectively, and the first guide screw 14 is in sliding connection with the corresponding third long hole 11.

[0034] The linkage support frame 9 is horizontally arranged at the lower side of the upper side plate of the fixed seat 1 and between the left and right side plates of the fixed seat 1, the left and right sides of the linkage support frame 9 are both fixedly provided with two second guide screws 2 which are spaced apart in front and back directions, the two second guide screws 2 on the left side are both horizontally through the second long hole 15 on the left side and are in sliding connection, and the two second guide screws 2 on the right side are both horizontally through the second long hole 15 on the right side and are in sliding connection.

[0035] The present application has multiple working modes:

[0036] (1) A and B hydraulic motor static self-locking state

[0037] When the action signal is transmitted to the double hydraulic motor multi-rotation mode remote control execution driver, the steering gear is in the middle position of the A valve execution rack 8 and the B valve execution rack 7, because the rear ends of the A valve push rod 12 and the B valve push rod 13 are connected with the two operating handles of the double hydraulic reversing valve through the ball bearing respectively, then the corresponding double hydraulic reversing valve is in the middle position, according to the working mode of the double hydraulic reversing valve, the hydraulic oil of the hydraulic pump station returns to the tank of the pump station through the double hydraulic reversing valve, the hydraulic oil does not work on the A and B hydraulic motors, and thus the A and B hydraulic motors are in the static self-locking state.

[0038] (2) A and B hydraulic motor same direction positive rotation and acceleration

[0039] When the double hydraulic motor multi-rotation mode remote control execution driver receives the A and B hydraulic motor positive rotation signal, the push rod of the self-locking push rod motor 4 is slowly extended according to the signal size, the push rod of the self-locking push rod motor 4 pushes the execution steering gear 3 slowly through the linkage support frame 9, the execution steering gear 3 is slowly extended through the linkage of the steering gear and the A valve execution rack 8 and the B valve execution rack 7, and then the A valve push rod 12 and the B valve push rod 13 drive the A and B spools of the double hydraulic reversing valve slowly through the two operating handles of the double hydraulic reversing valve, according to the working mode of the double hydraulic reversing valve, the A and B spools gradually open the positive rotation valve road from the closed state, the hydraulic oil flows through the A and B hydraulic motors through the A and B positive rotation valve road, and thus the A and B hydraulic motors are positively rotated from slow to fast.

[0040] (Three) A, B hydraulic motor same direction reverse and acceleration

[0041] When the double hydraulic motor multi-rotation mode remote control execution driver receives A, B hydraulic motor positive rotation signal, the push rod of the self-locking push rod motor 4 is slowly retracted according to the signal size, the push rod of the self-locking push rod motor 4 pulls the execution rudder 3 through the linkage support frame 9 to slowly retract, the execution rudder 3 is slowly retracted by the rudder gear linkage A valve execution rack 8 and B valve execution rack 7, and then the A valve push rod 12 and the B valve push rod 13 drive the A, B valve core of the double hydraulic reversing valve to slowly act through the two operating handles of the double hydraulic reversing valve, and the A, B valve core gradually opens the reverse valve road from the closed state according to the working mode of the double hydraulic reversing valve, the hydraulic oil flows through the "A, B hydraulic motor" from the A, B reverse valve road, so that the "A, B hydraulic motor" is reversed from slow to fast;

[0042] (Four) A, B hydraulic motor positive and negative rotation mode

[0043] When the double hydraulic motor multi-rotation mode remote control execution driver receives A, B hydraulic motor positive and negative rotation signal, the push rod of the self-locking push rod motor 4 remains in the middle position, and the execution rudder 3 discriminates positive rotation or reverse rotation according to the signal. If the execution rudder 3 is a positive rotation signal, the execution rudder 3 drives the rudder gear to rotate clockwise, the rudder gear drives the A valve execution rack 8 to extend and the B valve execution rack 7 to retract, and the A, B valve core of the double hydraulic reversing valve is slowly actuated accordingly. According to the working mode of the double hydraulic reversing valve, the A valve core gradually opens the positive rotation valve road from the closed state, and the B valve core gradually opens the reverse rotation valve road from the closed state. The hydraulic oil flows through the A hydraulic motor from the A positive rotation valve road and the B hydraulic motor from the B reverse rotation valve road through the double hydraulic reversing valve, so as to realize the operation state of A hydraulic motor positive rotation and B hydraulic motor reverse rotation. Correspondingly, if the execution rudder 3 is a reverse signal, the operation state of A hydraulic motor reverse rotation and B hydraulic motor positive rotation can be realized;

[0044] (Five) Hybrid differential mode

[0045] When the dual-hydraulic motor multi-rotation mode remote control execution driver receives a hybrid differential dual-channel signal, the self-locking push rod motor 4 and the execution rudder 3 are linked and work simultaneously, when the A hydraulic motor and the B hydraulic motor need to rotate in the same direction, the push rod of the self-locking push rod motor 4 is slowly extended according to the signal size, and at the same time the execution rudder 3 is rotated clockwise according to the signal to determine the forward rotation or reverse rotation, if it is a forward rotation signal, then the execution rudder 3 drives the rudder gear to rotate clockwise, according to the control principle described in mode (four), it can be known that the opening size of the forward rotation valve of the A valve core is greater than the opening size of the forward rotation valve of the B valve core, so the A hydraulic motor forward rotation speed is greater than the B hydraulic motor forward rotation speed, otherwise, the A hydraulic motor forward rotation speed is less than the B hydraulic motor forward rotation speed; when the A hydraulic motor and the B hydraulic motor need to rotate in the opposite direction, the push rod of the self-locking push rod motor 4 is slowly retracted according to the signal size, and at the same time the execution rudder 3 is rotated clockwise according to the signal to determine the forward rotation or reverse rotation, if it is a forward rotation signal, then the execution rudder 3 drives the rudder gear to rotate clockwise, according to the control principle described in mode (four), it can be known that the opening size of the reverse rotation valve of the A valve core is less than the opening size of the reverse rotation valve of the B valve core, so the A hydraulic motor reverse rotation speed is less than the B hydraulic motor reverse rotation speed, otherwise, the A hydraulic motor reverse rotation speed is greater than the B hydraulic motor reverse rotation speed.

[0046] From the above working principle, it can be known that the present application can be used for a wheeled or tracked heavy load moving chassis, can realize remote control operation, can realize stepless acceleration and deceleration, free turning, U-turn and other actions; can also be used for a hydraulic equipment installed with a double-connection hydraulic reversing valve, and can be used for wireless control transformation and upgrading; can also be used for a hydraulic drive device of an agricultural mechanical equipment, and can realize remote control operation, unmanned driving and other functions; and can also be used for synchronous and non-synchronous extension and other complex actions of a double-hydraulic cylinder.

[0047] The above examples are only used to illustrate but not to limit the technical solutions of the present application, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the present application can still be modified or replaced equivalently without departing from the spirit and scope of the present application, any modification or partial replacement should be covered in the scope of the claims of the present application.

Claims

1. A dual-hydraulic motor multi-rotary mode remote control execution drive, characterized by: The utility model provides a kind of valve actuator, including fixed seat, self-locking push rod motor, A road valve execution rack, B road valve execution rack and execution rudder, fixed seat is installed in the front side for driving double hydraulic motor motion double hydraulic reversing valve, the upper portion front side and rear side of fixed seat are both provided with the fixed support plate being arranged vertically along left and right direction, self-locking push rod motor is horizontally installed in the front side of the fixed support plate of front side, A road valve execution rack and B road valve execution rack are both horizontally arranged and are slidably installed in the upper portion of fixed seat, the rear end of self-locking push rod motor is installed with linkage support frame, linkage support frame is slidably connected in the lower portion of fixed seat, execution rudder is fixedly installed in the lower portion of linkage support frame, the middle portion of fixed seat is provided with the first long hole being penetrated up and down along front and back direction, the output shaft of execution rudder is located the upside of execution rudder and vertically passes through linkage support frame and first long hole, the output shaft of execution rudder is installed with the rudder gear being engaged transmission connection with A road valve execution rack and B road valve execution rack, the rear end of A road valve execution rack is fixedly connected with A road valve push rod, the rear end of B road valve execution rack is fixedly connected with B road valve push rod, A road valve push rod and B road valve push rod are all horizontally penetrated rear fixed support plate and are slidably connected with rear fixed support plate, the rear end of A road valve push rod and B road valve push rod is respectively connected with the two operating handles of double hydraulic reversing valve through ball bearing.

2. The dual-hydraulic motor multi-rotational mode remote- controlled actuator according to claim 1, wherein: Fixed seat is the channel steel structure being penetrated front and back and with the lower side open, the lower side of the fixed support plate of front side is fixedly connected with the front side of the upper side plate of fixed seat, the lower side of the fixed support plate of rear side is fixedly connected with the rear side of the upper side plate of fixed seat, the upper side of the upper side plate of fixed seat is fixedly provided with two first guide screws being spaced front and back, the left and right side of the upper side plate of fixed seat is provided with the second long hole being penetrated left and right along front and back direction, the fixed support plate of rear side is provided with two guide holes being spaced left and right, A road valve push rod and B road valve push rod are respectively penetrated and slidably connected in two guide holes.

3. The dual-hydraulic motor multi-rotational mode remote- controlled actuator according to claim 2, wherein: A road valve execution rack and B road valve execution rack are the same structure and are symmetrically arranged left and right, A road valve execution rack and B road valve execution rack are both provided with two third long holes being penetrated up and down and spaced front and back along front and back direction, two first guide screws of left side are respectively vertically penetrated two third long holes on A road valve execution rack, two first guide screws of right side are respectively vertically penetrated two third long holes on B road valve execution rack, first guide screw is slidably connected with corresponding third long hole.

4. The dual-hydraulic motor multi-rotational mode RCD of claim 2, wherein: Linkage support frame is horizontally arranged in the lower side of the upper side plate of fixed seat and between the left and right side plates of fixed seat, the left and right side of linkage support frame is fixedly provided with two second guide screws being spaced front and back, two second guide screws of left side are both horizontally penetrated and slidably connected in the second long hole of left side, two second guide screws of right side are both horizontally penetrated and slidably connected in the second long hole of right side.

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